Campfire
来自Big Physics
late Middle English: from bone + fire. The term originally denoted a large open-air fire on which bones were burnt (sometimes as part of a celebration), also one for burning heretics or proscribed literature. Dr Johnson accepted the mistaken idea that the word came from French bon ‘good’.
wiktionary
camp + fire
etymonline
campfire (n.)
also camp-fire, "fire in a camp for warmth or cooking," 1835, from camp (n.) + fire (n.). In the GAR (Civil War Northern veterans' society), "a meeting or reunion of members of a post" (1874).