διεκπλεῖν

From LSJ

ἐν πέτροισι πέτρον ἐκτρίβων → by grinding stone against stones

Source

Greek > English (Woodhouse Verbs Reversed)

(see also διεκπλέω): break the enemy's line of ships

Lexicon Thucydideum

perrumpere classem hostilem, to break through the enemy fleet, 1.50.1, 7.36.4.