Artificial intelligent assistant

soporative

soporative, a. and n. Obs.
  [f. L. sopōrāt-, ppl. stem of sopōrāre to soporate. Cf. F. soporatif, -ive (Godef.).]
  = soporific a. and n.

1628 Gaule Pract. The. (1629) 294 Such Potions (whether inebriatiue, soporatiue, or stupefying) may be..admininstred. 1707 Curios. in Husb. & Gard. 256 A Narcotick and Soporative Virtue. 1770 Langhorne Plutarch (1879) I. 275/2 The debauch threw him into violent pain; to allay which, he asked for a soporative.

Oxford English Dictionary

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