Artificial intelligent assistant

rationable

ˈrationable, a. Obs.
  [ad. L. ratiōnābilis: see ration and -able. Cf. obs. F. rationable.]
  1. Reasonable, just, right. (Chiefly Sc.)

1436 Extr. Burgh Rec. Edinb. (1869) I. 4 It is ordanit..the alderman baillies and counsaile by this vitaile of rationable pryce as thai may. 1535 Stewart Cron. Scot. I. 38 Of that desyre content was euerie wicht, Tha thocht it wes rationabill and richt. 1570–80 in 14th Rep. Hist. MSS. Comm. App. III. 44 Gyffand vs..ane rationabyll drink-syluer. 1662 J. Chandler Van Helmont's Oriat. 19 Whatsoever is akin to truth, this reason judgeth rationable, and agreeable to Reason.

  2. Rational; sensible.

1620 Melton Astrolog. 26 Astrologers or Astronomers,..that thinke Starres rationable Creatures, are worthy to be accounted most unreasonable and senselesse themselves. 1649 Bulwer Pathomyot. ii. ii. 131 Laughter..is a passion of the Rationable part.

  Hence ˈrationably adv., reasonably. Obs.

1646 J. Lilburne Jonah's Cry (1647) 4, I professe I would doe it, if I were rationably able to doe it to morrow. 1679 J. Smith Narr. Popish Plot 10 As they might very rationably believe.

Oxford English Dictionary

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