ex·ult 
(ĭg-zŭlt)
(ĭg-zŭlt)intr.v. ex·ult·ed, ex·ult·ing, ex·ults
1. To rejoice greatly; be jubilant or triumphant.
2. Obsolete To leap upward, especially for joy.
[Latin exsultāre : ex-, ex- + saltāre, to dance, frequentative of salīre, to leap; see sel- in the Appendix of Indo-European roots.]
ex·ultance, ex·ultan·cy n.