θεμιτός
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)
ή, όν, (θέμις)
A allowed by the laws of God and men, righteous, οὐ θεμιτόν [ἐστι],= οὐ θέμις, c. inf., οὐ θ. οἱ ἔφασκε πίνειν οἶνον h.Cer.207, cf. Pi.P.9.42, S.OT993, OC1758 (anap.), E.Or.97, Theoc.5.136, etc.: in Prose, Hdt.3.37,5.72, Pl.Ap.30d, IG 2.1059.16, 14.1390; μηδὲ θεμιτὸν . . μηδ' ὅσιον D.21.148: in pl., τὰ μὴ θεμίτ' ἦν [ἰδεῖν] dub. l. in Call.Lav.Pall.78. Adv. -τῶς Phot., Suid.