capriole

Etymology
Borrowed from, from.

Noun

 * 1) A leap that a horse makes with all fours, upwards only, without advancing, but with a kick or jerk of the hind legs when at the height of the leap.
 * 2) A leap or caper, as in dancing.

Verb

 * 1)  To leap; to caper.
 * 2)  To cause (one's mounted horse) to perform a capriole.