FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

agonizomai ἀγωνίζομαι — ag-o-nid'-zom-ahee — from 73; to struggle, literally (to compete for a prize), figuratively (to contend with an adversary), or genitive case (to endeavor to accomplish something):--fight, labor fervently, strive.

see GREEK for 73