σμῆμα
From LSJ
θοῦ, Κύριε, φυλακὴν τῷ στόµατί µου καὶ θύραν περιοχῆς περὶ τὰ χείλη µου → set a guard over my mouth, Lord; keep watch over the door of my lips | set a guard, O Lord, over my mouth; keep watch over the door of my lips (Psalm 140:3, Septuagint version)
English (LSJ)
Dor. σμᾶμα Theoc.15.30, ατος, τό, (σμάω)
A soap, unguent, Antiph.136, Philox.2.40, Theoc. l.c., Aristid.Or.49(25).36; written ζμῆμα PRyl.230.8 (i A.D.), PLond.2.243.23 (iv A.D.); cf. σμάω 1 fin.
