Jaunce

• (v. i.) To ride hard; to jounce.
Found on http://thinkexist.com/dictionary/meaning/jaunce/

Jaunce

Jaunce intransitive verb [ Old French jancer . Confer Jounce , Jaunt .] To ride hard; to jounce. [ Obsolete] « Spurr'd, galled and tired by jauncing Bolingbroke.» Shak.
Found on http://www.encyclo.co.uk/webster/J/5

jaunce

to prance; to cause a horse to prance
Found on http://phrontistery.info/j.html
No exact match found