ren·e·gade 
(rĕnĭ-gād′)
(rĕnĭ-gād′)n.
1. One who rejects a religion, cause, allegiance, or group for another; a deserter.
2. An outlaw; a rebel.
adj.
Of, relating to, or resembling a renegade; traitorous.
intr.v. ren·e·gad·ed, ren·e·gad·ing, ren·e·gades
To become a deserter or an outlaw.
[Spanish renegado, from Medieval Latin renegātus, past participle of renegāre, to deny : Latin re-, re- + Latin negāre, to deny; see ne in the Appendix of Indo-European roots.]