co-

co-, prefix of Latin origin.
  In Latin the preposition com- (which as a separate word was written in classical L. cum) was shortened to co- before vowels and h, also before gn-, e.g. coalescere, coercēre, coortus cohærēre, cognātus. Partly from the greater syllabic distinctness of this form of the prefix, arising out of the natural break between it and the following vowel, whereby also, on the break-down of the older quantitative system, the o became a long vowel, partly from the readiness with which some compounds of this type, as co-æquālis, co-adjūtor, co-episcopus, co-hæres, co-operātor, co-optāre, were analysed into their elements, co- has come in English to be a living formative, the use of which is no longer restricted to words beginning with a vowel, but extended to all words of analogous kinds, including native English or other words, as well as those from Latin. The general sense is ‘together’, ‘in company’, ‘in common’, ‘joint, -ly’, ‘equal, -ly’, ‘reciprocally’, ‘mutually’. It combines (like L. com-, con-, co-) with verbs, adjs., adverbs, and ns. It is sometimes prefixed to words of L. origin which are already compounded with com- (con-), as co-connexion, -conspirator, -constituent.
  It occurs also as a variant form of words of L. origin or type, where the regular form is com-, con-, cor-: e.g. co-centric, co-natural, co-numerary, † co-partment, co-relation, co-rival, co-temporary, co-terminous, and other occasional instances: cf. also co-citizen, co-join, co-mingle, with concitizen, conjoin, commingle, etc.
  All the more important of these compounds appear in their alphabetical order as Main words: there follow here examples of compounds of rare occurrence and obvious meaning, or in which the combination is but for the nonce. It is notable how many of these are solely due to Bishop Ken.
  1. Verbs.
  Of a joint subject: as, co-engage to engage along with others, co-sustain to sustain jointly. Of a joint object: as, co-admit to admit (two or more things) equally, co-annex to annex (things) along with others. So
  co-abound, † co-absume, co-admire, co-admit, co-agonize, co-animate, co-annex, co-annihilate, co-apprehend, co-ascend, co-attend, co-augment, co-bewail, co-bless, co-breathe, co-crucify, co-decree, co-delight, co-derive, co-die, co-elevate, co-embody, co-employ, co-enact, co-endear, co-enflame, co-engage, co-enjoy, co-exert, co-expire, co-glorify, co-harmonize, co-hymn, co-implore, co-include, co-infer, co-inspire, co-inter, co-inthrone, co-love, co-oblige, co-produce, co-quicken, co-raise, co-rebel, co-rejoice, co-resign, co-resort, co-seat, co-spire, co-suffer, co-sustain, co-torment, co-torture, co-transfuse, co-transpire, co-transubstantiate, co-twist, co-vibrate, co-worship.

a 1711 Ken Christophil Poet. Wks. 1721 I. 519 While Hymn and Love here *co-abound.

1642 F. White Repl. Fisher 424 The words..are not, Is consumed by the substance, but, Is *coabsumed with the substance.

a 1711 Ken Hymnotheo (1721) III. 370 The Blessed Co-everlasting Three, By Lovers co-ador'd, and *co-admir'd.

― Hymnarium II. 31 God in himself has taught in Holy Writ Prescience and Liberty to *co-admit.

― Hymns Evang. I. 139 That I..May with thy Agony *co-agonize.

1660 Henchman Peace-offering 4 *Coanimated into one inward Love in Christ.

a 1600 Hooker Eccl. Pol. vii. II. 474 Unless such difficulties therefore annexed unto that estate be tempered by *co-annexing thereunto things esteemed of in this world. 1775 *Co-annihilate: see Co-infer.

1646 Sir T. Browne Pseud. Ep. v. xx. 263 Able to communicate their conceptions unto any that *co-apprehended the Syntaxis of their natures.

1603 Sir C. Heydon Jud. Astrol. vi. 170 Her place considered with latitude is truly vnderstood in the rule, and the degree *co-ascending therewith.

a 1711 Ken Hymns Festiv. (1721) I. 376 Passions on my Will to *co-attend.

c 1611 Chapman Iliad xiii (R.), Virtue *coaugmented thrives, in men of little minde.

a 1711 Ken Hymnotheo (1721) III. 131 The Mourners wont his soul to *co-bewail.

― Preparatives IV. 127 Flesh which with Soul to be *co-bless'd In Hope shall rest.

― Hymns Evang. I. 135 When Godhead Fontal and Deriv'd, *co-breath.

― Christophil I. 437, I, while thou suffer'st, shall abide *Co-crucify'd.

― Sion IV. 329 The glorious three, Acceptance gracious *co-decree.

Ibid. IV. 350 Each..In heav'nly Love will *co-delight.

― Hymns Festiv. I. 268 Love, Joy, and Praise, All *co-deriv'd from God the source.

1865 Pusey Eiren. i. 154 She..was willing to *co-die with her Son.

1619 R. Jones Serm. in Phenix (1708) II. 489 The Body and the Soul..each *co-elevating other to make up the Resurrection.

1760–72 H. Brooke Fool of Qual. (1859) II. 252 (D.) Father, Son, and Holy Spirit will then become *coembodied in this Divine body.

a 1711 Ken Hymns Festiv. (1721) I. 255 With them they wou'd in Song be *co-employ'd.

1645 W. Ball Sphere Govt. 8 A deniall of acting, enacting, or *coenacting with the Parliament.

a 1711 Ken Edmund (1721) II. 275 To God and to each other *co-endear'd.

― Hymnotheo III. 172 Angels with Love each other *co-enflame.

1650 St. Trials, Colonel Andrewe (R.), I was promised by Benson, that if Sir John Gell, and their pretended friends of the country, did *co-engage, I should be disengaged.

c 1645 Howell Lett. (1650) I. 262, I wish my soul no other felicity..than to ascend to his, and *co-enjoy the same bliss.

a 1711 Ken Hymns Festiv. (1721) I. 268 In saints they *co-exert their Might.

― Hymnotheo III. 166 They..at the Point of Death shall *co-expire.

― Hymns Evang. I. 137 In them with Thee I am *co-glorify'd.

Ibid. I. 41 Thy attributes are all *co-harmoniz'd.

Ibid. I. 179 *Co-hymn'd by the Celestial Host.

― Christophil I. 483 Thy Loves, Great Trine, I co-adore, And co-adoring, *co-implore.

1664 Power Exp. Philos. i. 40 In this Cartilaginous Pericardium..is likewise the Auricle *co-included.

1775 Harris Philos. Arrangem. (1841) 356 The latter logicians are accustomed to call this mode of priority, that which is *co-inferred, but does not co-infer; that which co-annihilates, but is not co-annihilated.

a 1711 Ken Edmund (1721) II. 259 Both at one Breath by God seem'd *co-inspired.

1874 Pusey Lent. Serm. 312 Their old man had been crucified with Christ..with Him they had been *co-interred, with him coraised.

1650 T. Hubbert Pill to Formality 73 Can Christ and Belial be *co-inthroned?

a 1711 Ken Christophil (1721) I. 484 *Co-loving Thee..Great Trine.

― Edmund II. 278 Interest, Honour, Nature, and Heavn's Will, All *co-oblige you to revenge the Ill.

― Hymnotheo (1721) III. 370 The great Terraqueous System [to] *co-produce.

a 1677 Barrow Creed Wks. 1859 VII. 296 He *co-quickened, co-raised, and co-seated us (if I may so speak) with him in heavenly places. 1874 Pusey Lent. Serm. 312 He..co-quickened us in Christ.

1677 *Co-raise [see co-quicken]. 1874 Co-raise [see co-inter].

a 1711 Ken Preparatives (1721) IV. 75 All..which fell, Will strive to make you *co-rebell.

― Hymns Festiv. I. 400 Their Brethren *co-rejoyce.

― Sion IV. 379 They to his conduct Psyche *co-resign.

1678 Pol. Ballads (1860) I. 209 Where zealots and Whigs *co-resort. 1677 *Co-seat: see co-quicken.

a 1711 Ken Hymnotheo (1721) III. 355 Father and Son..The gracious Co-eternal Dove *co-spir'd.

1603 Florio Montaigne i. i. (1632) 2 They..would have us aid the afflicted, but not to faint, and *co-suffer with them.

a 1711 Ken Hymnotheo (1721) III. 385 Their Chief and they the Burthen *co-sustain'd.

Ibid. III. 89 Damn'd Souls and Devils..each other *co-torment.

― Psyche IV. 239 Tortur'd themselves, and yet *co-torturing me.

― Hymnotheo III. 235 Saints sweetly here discourse, and heav'nly News Into each other only *co-transfuse.

― Psyche IV. 257 They kiss'd and in protracted kiss repos'd; Love *co-transpiring.

― Sion IV. 345 How we..by nuptial Tie are one How we *co-transubstantiated are grown.

1833 Lamb Elia (1860) 360 Linked to her connatural tree, *co-twisting with its limbs her own.

1881 Le Conte Light 58 They *co-vibrate with the undulations of the ether.

1607 Schol. Disc. agst. Antichr. i. i. 3 Yea in a Crosse *co-worshipped with him in the verie same worship.

  2. Adjs. (often participial), and advbs.
  Thus co-embedded embedded together, co-harmonious unitedly harmonious, co-intersecting intersecting mutually; thence adverbs, as co-harmoniously:
  co-ambulant, co-amiable, co-apostate, co-ardent, co-boundless, co-divine, co-effluent, co-effluential, co-elongated, co-embedded, co-endearing, co-enflaming, co-featured, co-foreknown, co-glorious, co-gracious, co-harmonious (and -ly), co-hellish, co-immense, co-incorporate, co-intersecting, † co-like, co-lovely, co-mournful, co-neighbouring, co-omniscient, co-penetrating, co-pleased, co-reflexed, co-sounding, co-transforate, co-universal.

1688 R. Holme Armoury ii. 300/1 Two Doves *Coambulant..are a loving pair walking together.

a 1711 Ken Hymns Festiv. Poet Wks. 1721 I. 349 That *Co-amiable Trine.

― Hymnotheo III. 123 Pride..First down from Bliss Apostate Angels threw, First *co-apostate Man from God withdrew.

Ibid. III. 358 To the Co-une, Co-amiable, Three, *Co-ardent Love, Co-equal Praises be.

― Christophil I. 458 Lord, out of thy *co-boundless store, I love-supplies implore.

― Hymns Evang. I. 136 He'll speak from Both with Mission *Co-divine.

Ibid. I. 94 God *co-effluent fill'd his human Mind.

― Hymns Festiv. I. 267 Thou Trine *Co-effluential Love.

1854 R. Owen in Circ. Sc. (c 1865) II. 58/1 The iliac bones and sides of the sacrum become *co-elongated.

1851–9 Darwin in Man. Sc. Enq. 278 The age of such a formation would have to be judged of by the *co-embedded shells.

a 1711 Ken Christophil (1721) I. 435 The Spirit on Thy sacred Head Wings radiant, *co-endearing spread.

― Psyche IV. 165 With a *co-enflaming Ardour vie.

1849 Reverberations ii. 85, I can see no year *co-featured or conformable therewith.

a 1711 Ken Hymnar. II. 31 Things certain, or contingent, *co-foreknown.

― Preparatives IV. 57 Within the Gracious shine Of the *co-glorious Trine.

― Christophil I. 485 The Love Which in the Three *Co-gracious reigns.

― Hymnotheo III. 241 In *co-harmonious Numbers, Measures, Weights.

― Christophil I. 447 He taught how sweet Humility and Height In souls would *co-harmoniously unite.

― Hymns Evang. I. 149 Jesus, worried by the Pagan crew, Storm'd by Hell Powers, and the *co-hellish Jew.

― Hymns Festiv. I. 228 Thou Godhead's *Co-immense First-born.

1650 C. Elderfield Tythes 89 The diffused and *coincorporate Law.

1881 Athenæum 21 May 692/1 Mr. S. Roberts's Theorem of Four *Cointersecting Spheres.

1678 R. R[ussel] tr. Geber iv. ii. 242 With the Union of all *Co-like Parts.

a 1711 Ken Edmund (1721) II. 340 Philothea..Clarissa..Devota..a *co-lovely Trine.

― Hymnotheo III. 339 The Doves..Notes *co-mournful mutually rehearse.

1664 Power Exp. Philos. ii. 108 Both being fluid, dissipable, and *co-neighbouring Elements.

a 1711 Ken Preparatives (1721) IV. 114 The Bless'd *co-omniscient Three.

― Hymns Festiv. I. 268 Great God thus unity displays, In sweet *co-penetrating Rays.

― Hymnotheo III. 338 Pleas'd with Eve's stroaking it, it meekly bay'd, And she *co-pleased, the Lamb her fondling made.

Ibid. III. 166 Dear Lovers there in *co-reflex'd delight.

1852 Seidel Organ 130 Sometimes this *co-sounding tone is not quite clear or distinct.

1875 Myers Poems 76 *Co-transforate with Christ.

a 1711 Ken Hymnotheo (1721) III. 42 Death keeps with Sin *co-universal sway.

  3. Substantives. a. Of action, state, etc. co-abode, co-administration, co-admiration, co-advice, co-aid, co-audience joint-hearing, † co-benignity, co-connexion mutual connexion, † co-delight, co-denization, co-domestication, co-emanation, † co-enamourment, co-exertion, co-explosion, † co-heartedness communion or unity of hearts, co-indwelling, co-infeftment, co-interest, co-life, co-perception, co-principate, † co-respect, co-splendour, co-tenure, co-understanding, co-use.

a 1711 Ken Sion Poet. Wks. 1721 IV. 391 Such love the Saint to Paula shew'd In their bless'd *Co-abode.

1688 Lond. Gaz. No. 2389/3 Deputed to this *Coadministration during the Pleasure of his Holiness and the Apostolick See.

1628 Hume Jewes Deliv. i. 2, 1. Their *coadmiration. 2. Their congratulation.

1651 Howell Venice 10 Without the *co⁓advice of som..mates.

1631 G. Webbe Quietn. (1657) 109 The cooperation of the hands..the *co-audience of the ears.

a 1711 Ken Hymns Festiv. (1721) I. 268 *Co-benignities Divine Gush out on us from Godhead Trine.

1823 J. Badcock Dom. Amusem. 127 The intimate *co-connection that exists between galvanic electricity and magnetism.

a 1711 Ken Hymnarium (1721) II. 9 Reflecting still thy Godhead bright, and in co-splendour *co-delight.

1840 Tait's Mag. VII. 71 The mission of the apostles was not an episcopizing of geographical dioceses..but a *co-denization of human hearts.

1819 Coleridge Rem. (1836) II. 193 *Co-domestication with Edgar and their common father.

a 1711 Ken Hymns Evang. (1721) I. 82 The blessed Three..joyn Man with *co-emanations to refine.

― Hymns Festiv. I. 291 She melting, while he sweetly shin'd, To *co-enamourments inclin'd.

1809–10 Coleridge Friend (1865) 34 Works which cannot act at all except as far as they call the reasoning faculties into full *co-exertion with them.

1823 J. Badcock Dom. Amusem. 66 *Co-explosion of Fulminating Silver. If small parcels of this preparation be laid about upon the table..and one parcel be touched with sulphuric acid, the whole detonate spontaneously.

1619 R. Jones Recant. Serm. in Phenix (1708) II. 496 The unanimity and accord of the Disciples..signifies a *co-heartedness, and unanimity or concurring in affection.

1840 Gladstone Ch. Princ. 398 That *coindwelling of good and evil which passes our understanding.

1858 Carlyle Fredk. Gt. (1865) I. iii. vi. 181 The electoral branch managed to get mitbelehnung (*co-infeftment), that is to say, Eventual Succession.

1648 Milton Observ. Art. Peace (1851) 581 The appearance of a *co-interest and partaking with the Irish Rebels.

1841–4 Emerson Ess. Ser. ii. ii. (1876) 67 The soul is not twin-born, but the only begotten..admitting no *co-life.

Ibid. Ser. i. vii. 179 The order of the world and the distribution of affairs and times being studied with the *co-perception of their subordinate place.

1874 H. Reynolds John Bapt. App. 531 There was a genuine *Co-principate of Tiberius and Augustus before the middle of 765 a.u.c.

a 1711 Ken Hymnotheo (1721) III. 355 Love co-immense flows from their *co-respects.

― Hymnarium II. 9 Reflecting still thy God-head bright, And in *Co-splendor, Co-delight.

1860 Sala Lady Chesterf. v. 79 Queen Adelaide's *co-tenure of the sceptre was of..brief duration.

c 1645 Howell Lett. (1650) II. 110 Provided ther be reciprocall knowledge, and *co-understanding of the art 'twixt the parties.

1886 Antiquary XIV. 94 By their *co-use to designate the same individual.

  b. Agent-nouns (and derivatives of function, adjectives used substantively), etc. co-actor, co-agriculturist, co-aid, co-ambassador, co-apostate, co-approver, co-asserter, co-believer, co-burgess, co-burgher(-ship), co-churchwarden, co-conspirator, co-descendant, co-despairer, co-discoverer, co-editor (-ship), co-elder (-ship), co-emperor, co-enactor, co-engager, co-faster, co-father (-ship), † co-fere, co-fisher, co-herald, co-husband, co-inmate, co-inventor, co-islander, co-judge, co-justiciar, co-king, co-legislator, co-magistracy, co-mourner, co-murmurer, co-nominee, co-non-intelligent, co-parallel, co-parent, co-patentee, co-presbyter, co-promoter, co-rebel, co-rival, co-saviour, co-settler, co-species, co-sufferer, co-traitor, co-translator, co-tripper, co-tutor, co-twin, co-villager, co-votary.

1638 Brome Antipodes ii. ii, You are To speake to your *co-actors in the Scene.

1880 Macm. Mag. No. 245. 415 The American farmer has his grievance as well as his *co-agriculturist in Britain.

1715–20 Pope Iliad xiii. 619 Paris, Deiphobus, Agenor join; *Co-aids and captains of the Trojan line.

1579 Fenton Guicciard. i. (1618) 5 Gentill Bishop of Aretze, the other *coembassador for Florence.

a 1711 Ken Edmund (1721) II. 9 *Co-apostates damn'd as well as we.

1684 H. More Answer 29 *Co-approvers of the sentence.

1652 Gataker Antinom. 15 The Autor and other his *coasserters of free grace.

1885 Manch. Exam. 6 July 5/1 In concert with his *co-believers.

1852 Grote Greece ii. lxxvi. X. 74 Knit together..by the *coburgership.

1565 in Picton L'pool Munic. Rec. (1883) I. 35 His brethren and commonalty of *co-burgesses.

1835 Crompton & Meeson Rep. Cases Crts. Exchequer 316 head-note, A churchwarden has no authority to pledge the credit of his *co-churchwardens for repairs to the church. 1868 Daily News 21 July, Mr. Hubbard had been consulted by his co-churchwarden.

1863 Bright Sp. America 30 June, He has sought to become..in the palace of the French emperor a *co-conspirator with him. 1866 Church & St. Rev. 7 Dec. 771 Mr. Bright and his co-conspirators.

1884 Popular Sc. Monthly XXIV. 787 Man is the *co-descendant with other mammals of a common progenitor.

a 1711 Ken Edmund (1721) II. 10 Ye *Co-despairers in these woes.

1871 Proctor Light Sc. 56 Professor Adams—*co-discoverer with Le Verrier of the distant Neptune.

1873 S. J. Hall Sk. Remarkable People xvi. 204 A *co-editor of the ‘Sheffield Iris’. 1940 Mind XLIX. 256 M. Hans H{obar}ffding..died in 1937, and his co-editors completed the work.

1863 N. & Q. Ser. iii. IV. 231 Brought out under the *co-editorship of Dr. Geo. Hickes and Dr. F. Lee.

1726 Trapp Popery i. §5. 78 In the original it is συµπρεσβύτερος, *Co-elder.

1876 Humphreys Coin-Coll. Man. xxiv. 353 These two personages were elected *co-emperors by the senate.

1649 W. Ball Power of Kings 5 They..are called to Act with, or to be *Co-enactors.

1650 St. Trials, Colonel Andrewe (R.), The *co-engagers in that resolution.

1882–3 Schaff Encycl. Relig. Knowl. III. 1787 By means of a sufficient number of *co-fasters, a fast of seven years may be accomplished in six days.

1839 G. Darley in Beaum. & Fl.'s Wks. Introd. 29 The tragedies, especially those of Beaumont's *co-fathership.

1430 Lydg. Chron. Troy i. vi, Iason is come with many a manly man, Of his *coferes.

1854 Badham Halieut. 5 Venus and Cupid were as great *co-fishers from the same boat as Cleopatra and Antony.

18.. Coleridge Chamouni iv, Thyself Earth's rosy star, and of the dawn *Co-herald.

1647 R. Stapylton Juvenal Sat. x. 190 Him whom Cæsar's wife will chuse *Co-husband.

1882 J. Hawthorne Fort. Fool i. xxxi, As *co-inmates of one dwelling.

1887 F. D. Clark in Proc. Amer. Instr. Deaf 306 One of the *coinventors of the audiometer.

1644 Howell Engl. Teares in Harl. Misc. (Malh.) V. 448 Against my *co-islander the Scot.

1639 R. Gentilis Servita's Inquis. (1676) 841 If these Lords will be Coadjutors, may they be blessed, but if they will be *Co-judges, we cannot endure it.

1875 Stubbs Const. Hist. I. xiii. 599 Thomas the Chancellor, and the earl of Leicester the *cojusticiar.

1884 Tennyson Becket ii. ii. 105 *Co-kings we were, and made the laws together.

1855 Milman Lat. Chr. (1864) II. iii. 61 In proportion as the ecclesiastics became *co-legislators, heresies became civil crimes.

1830 Galt Lawrie T. iii. xiii. (1849) 128 During our *co-magistracy.

a 1711 Ken Hymnotheo (1721) III. 131 *Co-mourners all, With supplemental Tears lament my Fall.

Ibid. III. 203 Some..vent To their *co-murmurers their Discontent.

1835 Kirby Bridgewater Treat. (1852) I. 53 Though mostly derived from the same source as that of my learned *co-nominee.

1866 De Morgan in Athenæum 2 Sept. 312/2, I am not ashamed, having the British Association as a *co-non-intelligent, to say I do not understand this.

1639 G. Daniel Ecclus. xlix. 10 David and Ezechias we may bring, *Co-paralels in Glorie with this King.

1882 A. Macfarlane Consanguin. 4 The expression consort may be taken..in the simple sense of *co-parent of a child.

1602 Warner Alb. Eng. ix. xlv. (1612) 216 These twayne and those three Furies thus, *Copattentees, leaue Hel.

1693 Apol. Clergy Scot. 60 Then his *Co-Presbyters..handled him to purpose.

1909 Webster, *Copromoter. 1960 Farmer & Stockbreeder 8 Mar. 58/3 The farmland can be saved..if the co-promoters of the proposal, the Beds and Hunts county councils, are prepared to spend up to another {pstlg}3 m. 1984 Maclean's Mag. 20 Feb. 23 Andropov's false image was probably constructed by the KGB... Its copromoters: Soviet defectors and dissident émigrés who parroted, confirmed or embellished KGB falsehoods.

a 1711 Ken Edmund (1721) II. 99 Lucifer..And all his chief *Co-Rebels. 1878 Tennyson Q. Mary iii. i, Did not his last breath Clear Courtenay and the Princess from the charge Of being his co-rebels?

1823 Lamb Ess. Elia, Refl. in Pillory Honour without *co-rival.

1656 Trapp Comm. Acts iv. 12 We have no *co-saviour.

1878 J. Buller New Zealand i, A boat..manned by Governor Glass, and a crew of his *co-settlers.

1847–9 Todd Cycl. Anat. IV. 136/1 Encephaloid stands apart from its *co-species.

1672 Wycherley Love in Wood Prol., Those..Should as *co-sufferers commiserate.

a 1711 Ken Edmund (1721) II. 298 Him Hinguar strait for his *Co-traitor sent.

1858–9 Chambers' Cycl. Eng. Lit. s.v. Pope, Deducting the sums paid to his *co-translators, Pope realised by the ‘Odyssey’ upwards of {pstlg}3500.

1887 N. Rye Norfolk Broads 22 Our *co-trippers..wanted to break off pieces of the walls to take back to America.

1852 Sir W. Hamilton Discuss. 548 A special tutor or *co-tutor is assigned to watch over the education of the children.

1836–9 Todd Cycl. Anat. II. 735/2 When a female is born a *co-twin with a male, this female is sterile.

1885 Antiquary Mar. 98/2 A meeting of the whole body of *co-villagers.

a 1711 Ken Hymns Evang. (1721) I. 80 Good Barsebas..As his *Co-vot'ry ended, thus went on.

  c. Esp. common in the phraseology of Law, with the sense of ‘joint’ or ‘fellow-’, as co-heir, co-executor, co-defendant, etc.; also co-acceptor, co-assignee, co-auditor, co-contractor, co-covenantor, co-creditor, co-debtor, co-delinquent (-ency), co-guarantor, co-infeftment, co-legatee, co-lessee, co-lessor, co-mortgagee, co-petitioner, co-plaintiff, co-projector, co-promisor, co-promoter, co-purchaser, co-sharer, co-surety, co-trustee.

1883 Ld. Watson in Law Times Rep. XLIX. 450/2 A. had signed as a *co-acceptor.

1884 Sir R. Baggallay in Law Rep. 14 Q. Bench Div. 179 One of two assignees was removed for misconduct on the application of his *co-assignee.

1884 Law Rep. 12 Q. Bench Div. 68 head-note, An auditor..is entitled to appoint an accountant..without the consent of his *co-auditor.

1856 Act. 19 & 20 Vict. c. 7 §5 No co-surety, *co-contractor, or co-debtor shall be entitled to recover from any other co-surety, co-contractor, or co-debtor..more than the just proportion.

1856 De Gex Macnaghten & Gordon Reports VIII. 100 marg. note, An intended co-surety who was purported to be made a *co-covenantor.

1875 Poste Gaius iii. comm. (ed. 2) 396 The obligation by which the *co-creditors are entitled or the co-debtors are bound. 1885 Law Times 6 June 98/2 He entailed {pstlg}18,000 loss on his co-creditors.

1875 Poste Gaius iii. comm. (ed. 2) 399 Where..the Solidarity is the effect of *co-delinquency, the delinquent who pays has no regressus.

Ibid. 398 In Solidarity the guarantor who pays the whole has regressus against his *co-guarantors.

Ibid. ii. §199 A lapsed portion accrues to the *colegatees.

1885 Sir R. Baggallay in Law Times Rep. LI. 897/2 The registrar thought it right to have the *co-lessee as well as the landlord before him.

1884 Weekly Notes 2 Aug. 180/2 The transfer of another mortgage to himself and another professional person as *co-mortgagee.

1884 Law Times 10 May 24/2 Liberty..to amend the petition by joining him as a *co-petitioner with B.

1881 Justice Fry in Times 12 Apr. 4/3 He should add the trustee as *co-plaintiff and give him the conduct of the action.

1847 C. G. Addison Contracts ii. vi. (1883) 826 He could not maintain an action against his *co-projectors for..money paid in furtherance of the joint undertaking.

Ibid. ii. iv. 663 The equity arises from the relation of the co-obligors, or *co-promisors inter se.

1884 Manch. Exam. 6 Oct. 7/3 If the Corporation..subscribe to the funds of the ship canal movement they must become *co-promoters under the Borough Funds Act.

1885 G. Denman in Law Times Rep. LIII. 470/1 The defendant knew that the title of the *co-purchasers was fictitious.

1881 Times 4 Aug. 3/4 The right of obtaining possession of a piece of land—that is, the pre-emption thereof..against one's *co-sharer whose possession is recent.

1847 Addison Contracts ii. iv. 659 A party has consented to be *co-surety with another.

1818 Cruise Digest I. 539 His *co-trustees having refused to join with him in the execution of the trust.

  4. Math. (short for complement). Used in the sense ‘{ddd}of the complement’, or ‘complement of {ddd}’: see cosine, cotangent, cosecant, co-altitude, co-declination, co-latitude.

1807 Hutton Course Math. II. 2 The Cosine, Cotangent, and Cosecant, of an arc, are the sine, tangent, and secant of the complement of that arc, the Co being only a contraction of the word complement.

Oxford English Dictionary