Traitor

имя существительное изменник, изменщик, предатель Синоним(ы): apostate, deserter, turncoat, betrayer Антоним(ы): supporter

Большой англо-русский словарь

Traitor

noun Etymology: Middle English traytour, from Anglo-French traitre, from Latin traditor, from tradere to hand over, deliver, betray, from trans-, tra- trans- + dare to give — more at date 1. one who betrays another's trust or is false to an obligation or duty 2. one who commits treason

Merriam-Webster's Collegiate Dictionary