Artificial intelligent assistant

somnifying

ˈsomnifying, ppl. a. Obs. rare.
  [See somni- and -fy.]
  Inducing sleep.

1634 Brereton Trav. (Chetham Soc.) 40 He also discoursed of..hemlock, which he said was of a most venomous, somnifying, stupifying, and intoxicating quality. 1770 Chatterton in Masson Life ii. iii. (1874) 163 This somnifying liquor had made her voice so like the sweet echo of Miss Hill's that..I should absolutely have imagined it hers.

Oxford English Dictionary

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