ἀντεπεξελαύνειν

From LSJ

μὴ κακὸν εὖ ἔρξῃς· σπείρειν ἴσον ἔστ' ἐνὶ πόντῳ → do no good to a bad man; it is like sowing in the sea

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: ἀντεπεξελαύνω) ride out against

Lexicon Thucydideum

ex adverso procurrere, to charge forth opposite, 4.72.3.