ἀγωνίζεσθαι, ἐπιζητεῖν, εὑρίσκειν καί μή εἴκειν → to strive, to seek, to find, and not to yield (Tennyson, Ulysses)
ἀπαντάω, ἀντιβαίνω, ἀντιόομαι