Artificial intelligent assistant

untristy

unˈtristy a.
  [un-1 7.]
  Faithless; unreliable.

1390 Gower Conf. II. 151 Jelousie of his *untrist Makth that full many an harm arist. c 1400 Comm. Luke i. 19 (MS. Bodl. 143), In beyng doumb he suffriþ þe peyne of vntrist disseruyd.


c 1374 Chaucer Troylus iii. 839 Whi hastow mad Troylus to me *vntriste? c 1460 Towneley Myst. xxvii. 210 Me thynk you all vntrist to trow,..All that the prophetys told to you before, it is no trane.


1387 Trevisa Higden (Rolls) VII. 115 A Goddes man seide..þat þere was to comen and *untristed [L. insperatum] a lordschipe fro Fraunce.


Ibid. III. 265 Þe firste tweie artes beeþ untrusty [Cotton MS. *vntrysti.] c 1400 Destr. Troy 11973 Þan happit hom to mete The traytor with tene, vntristy Eneas. c 1460 Promp. Parv. (Winch. MS.), On-trysty, idem quod on thende.

Oxford English Dictionary

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