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σφέας

From LSJ

Αὐτάρκης ἔσῃ, ἂν μάθῃς τί τὸ καλὸν κἀγαθόν ἐστι → You will be contented with your lot if you learn what the honourable and good is

Plutarch, De virtute et vitio

French (Bailly abrégé)

acc. de σφεῖς, v. σφε-.

Russian (Dvoretsky)

σφέας: (иногда односложно) acc. к σφεῖς.

Dutch (Woordenboekgrieks.nl)

σφέας en σφεας ep. en Ion. acc. van σφεῖς.