προσπολεμεῖν
From LSJ
τὸ δὲ ποιεῖν ἄνευ νοῦ ἃ δοκεῖ καὶ σὺ ὁμολογεῖς κακὸν εἶναι: ἢ οὔ → but doing what one thinks fit without intelligence is—as you yourself admit, do you not?—an evil
Greek > English (Woodhouse Verbs Reversed)
(see also προσπολεμέω): wage war against
Lexicon Thucydideum
bello petere, to attack in war, 7.51.1, 8.96.5, 8.96.5