προλοχίζειν

From LSJ

οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well

Source

Greek > English (Woodhouse Verbs Reversed)

(see also προλοχίζω): occupy with an ambush

Lexicon Thucydideum

insidiis occupare, to seize by ambush, 2.81.5, 3.110.2,
PASS. 3.112.6.