Artificial intelligent assistant

pertrouble

perˈtrouble, v. Obs. Chiefly Sc.
  In 5–6 perturble, 6 -trubil, -troubil.
  [a. OF. per-, partroubler, f. per- 2 + troubler to trouble. For the -turble form (L. type *perturbulāre), cf. disturble.]
  trans. To perturb, trouble greatly.

c 1470 Harding Chron. lxxxv. iv. (MS. Ashm. 34), Fortune..whare men wolde ay leven in charyte Thou doste perturble [v.r. perturbe] wiþ mutabilyte. 1485 Caxton Chas. Gt. 17 For this thyng I am noo thyng perturbled in my courage. 1513 Douglas æneis vii. vii. 16 That..scho suld perturble [ed. 1553 pertroubil] all the toun. 1819 W. Tennant Papistry Storm'd (1827) 38 But mair pertrubill'd was his case, Whan..They cam a' round him in a fluther.

  So pertroublance, mental disturbance, perturbation. Obs. rare—1.

1513 Douglas æneis xii. xi. 119 As first the schaddois of pertrublans [ed. 1553 pertrublance] Was dryve away, and hys remembrans The lycht of ressoun has recouerit agane.

Oxford English Dictionary

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