tourney (v.)
c.1300, from Anglo-French turneier, Old French tornoier "to joust, tilt," literally "turn around," from Vulgar Latin *tornizare, from Latin tornare "to turn" (see turn (v.)). Related: Tourneying.
tourney (n.)
c.1300, from Anglo-French turnei, Old French tornei "contest of armed men" (12c., Modern French tournoi), from tornoier "to joust, tilt" (see tourney (v.)).