joust

v. i. [ OE. justen, jousten, OF. jouster, jouster, joster, F. jouter, fr. L. juxta near to, nigh, from the root of jungere to join. See Join, and cf. Jostle. ] 1. To engage in mock combat on horseback, as two knights in the lists; to tilt. [ Written also just. ] [ 1913 Webster +PJC ]

For the whole army to joust and tourney. Holland. [ 1913 Webster ]

2. Hence: To engage in a competition involving one-to-one struggle with an opponent. [ PJC ]