πτερύγεσσιν

From LSJ

δι' ἐμοῦ βασιλεῖς βασιλεύουσιν, καὶ οἱ δυνάσται γράφουσιν δικαιοσύνην → through me kings rule, and princes dictate justice (Proverbs 8:15, LXX version)

Source

French (Bailly abrégé)

dat. pl. poét. de πτέρυξ.