Artificial intelligent assistant

traisty

traisty, a. Obs.
  [f. traist n. or ? a. + -y.]
  a. Secure, sure. b. Faithful, trusty.

13.. Cursor M. 59 (Gött.) For quen þu wenis traistiest to be, Þu sal fra hir or scho fra þe. 1513 Douglas æneis v. x. 12 And in his traisty eir thus prevaly He rownis.

Oxford English Dictionary

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