late 14c., from O.Fr. triumphe (12c.), from L. triumphus "achievement, a success, procession for a victorious general or admiral," earlier triumpus, probably via Etruscan from Gk. thriambos "hymn to Dionysus," a loan-word from a pre-Hellenic language. Sense of "victory, conquest" is c.1400. The verb is first recorded late 15c. Related: Triumphed; triumphing.