Artificial intelligent assistant

traistness

ˈtraistness Obs.
  [f. traist a. + -ness.]
  a. Firmness, stability. b. Firm confidence, trust. c. Faithfulness, trustiness.

a 1300 Cursor M. 24054 (Cott.) Moder! traistnes of ur treuth, Do vs to reu al wit þi reuth. Ibid. 23645 (Gött.) Þe gode..Þir er for traistnes blith and glad. a 1340 Hampole Psalter cv. 32 Þe traystnes þat he had in oþer. 1456 Sir G. Haye Law Arms (S.T.S.) 290 A gude Emperoure..[suld] be full of traistnes and worthynes.

Oxford English Dictionary

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