opiate

n. [ From Opium: cf. F. opiat. ] 1. Originally, a medicine of a thicker consistency than sirup, prepared with opium. Parr. [ 1913 Webster ]

2. Any medicine that contains opium, and has the quality of inducing sleep or repose; a narcotic. [ 1913 Webster ]

3. Anything which induces rest or inaction; that which quiets uneasiness. [ 1913 Webster ]

They chose atheism as an opiate. Bentley. [ 1913 Webster ]

a. [ See Opium. ] Inducing sleep; somniferous; narcotic; hence, anodyne; causing rest, dullness, or inaction; as, the opiate rod of Hermes. Milton. [ 1913 Webster ]

v. t. To subject to the influence of an opiate; to put to sleep. [ R. ] Fenton. [ 1913 Webster ]