Fondue

google

ref

French, feminine past participle of fondre ‘to melt’.

wiktionary

ref

Borrowed from French fondue(“melted”), from fondre(“to melt”).

etymonline

ref

fondue (n.)

1781 as a French word in English; naturalized from c. 1800, from French cooking term fondue "a cheese-pudding," literally "melted" (15c.), noun use of fem. of fondu, past-participle adjective from fondre "to melt," from Latin fundere (past participle fusus) "to melt, cast, pour out" (from nasalized form of PIE root *gheu- "to pour").