Fiance

имя существительное [французский язык] невеста Синоним(ы): bride

Большой англо-русский словарь

Fiancé

noun Etymology: French, from Middle French, from past participle of fiancer to promise, betroth, from Old French fiancier, from fiance promise, trust, from fier to trust, from Vulgar Latin *fidare, alteration of Latin fidere — more at bide a man engaged to be married

Merriam-Webster's Collegiate Dictionary