ψιλωτέον
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)
A one must write or pronounce with the spiritus lenis, Sch.Il.1.335, etc.
Greek (Liddell-Scott)
ψῑλωτέον: ῥημ. ἐπίθ., πρέπει τις νὰ μεταχειρισθῇ ψιλήν, Σχολ. εἰς Ἰλ. Α.335, κλπ.