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 Hills that I should absolutely have imagined it hers.