σφῶν

From LSJ

φελένη καὶ φάναξ καὶ φοῖκος καὶ φαήρ → Ἑλένη καὶ ἄναξ καὶ οἶκος καὶ ἀήρ | Helen, lord, house, and air

Source

French (Bailly abrégé)

gén. plur. du pron. οὗ.

Dutch (Woordenboekgrieks.nl)

σφῶν gen. van σφεῖς

Russian (Dvoretsky)

σφῶν: gen. pl. к οὗ (gen. к σφεῖς).