συνναυμαχεῖν

From LSJ

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

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: συνναυμαχῶ, συνναυμαχέω) fight a sea battle with others