Triumph
late Middle English: from Old French triumphe (noun), from Latin triump(h)us, probably from Greek thriambos ‘hymn to Bacchus’. Current senses of the verb date from the early 16th century.
wiktionary
From Old French triumphe, from Latin triumphus(“triumphal procession”), ultimately from Ancient Greek θρίαμβος(thríambos, “ thriambus”). Doublet of thriambus.
From Latin triumphō.
etymonline
triumph (n.)
late 14c., "success in battle, conquest," also "spiritual victory" and "a procession celebrating victory in war," from Old French triumphe (12c., Modern French triomphe), from Latin triumphus "an achievement, a success; celebratory procession for a victorious general or admiral," from Old Latin triumpus, probably via Etruscan from Greek thriambos "hymn to Dionysus," a loan-word from a pre-Hellenic language.
triumph (v.)
mid-15c., from Old French triumpher (13c.), from Latin triumphare, from triumphus (see triumph (n.)). Related: Triumphed; triumphing.