[joust] vi [ME, fr. MF juster to unite, joust, fr. (assumed) VL juxtare, fr. L juxta near; akin to L jungere to join--more at yoke] (14c) 1 a: to fight on horseback as a knight or man-at-arms b: to engage in combat with lances on horseback
2: to engage in personal combat or competition -- joust.er n
[2]joust n (14c) 1 a: a combat on horseback between two knights with lances esp. as part of a tournament b pl: tournament
2: a personal combat or competition: struggle