ἀμογητί
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)
Adv. of sq.,
A without toil or effort, Il.11.637, Call.Dian. 25, D.H.Dem.8, Luc.Nav.21, Plot.6.2.21, etc.