fiancé
Pronunciation: /fɪˈɒnseɪ, -ˈɑːns-, -ˈɒ̃s-/

Origin:
mid 19th century: from French, past participle of fiancer 'betroth', from Old French fiance 'a promise', based on Latin fidere 'to trust'

Spelling help
Fiancé (a French word) can also be spelled fiance, without an accent on the e. Similarly, the feminine form can be spelled fiancée or fiancee.