engage in a sea fight

From LSJ

πολλοὶ γάρ εἰσιν κλητοὶ ὀλίγοι δὲ ἐκλεκτοί → many are called, but few are chosen

Source

English > Greek (Woodhouse Extra)

ναυμαχεῖν, διαναυμαχεῖν