/ ˈrenɪgeɪd; NAmE / noun ( formal , disapproving )
1.
(often used as an adjective) a person who leaves one political, religious, etc. group to join another that has very different views
2.
a person who opposes and lives outside a group or society that they used to belong to
SYN outlaw
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WORD ORIGIN
late 15th cent.: from Spanish renegado , from medieval Latin renegatus renounced, past participle (used as a noun) of renegare , from re- (expressing intensive force) + Latin negare deny.