- belles-lettres (n.)
[belles-lettres 词源字典]
- "elegant literature, aesthetics," 1710, French, literally "fine letters," from belles, plural of belle, fem. of beau "fine, beautiful" (see beau) + lettres, plural of lettre "letter" (see letter (n.)). The literary equivalent of beaux arts.[belles-lettres etymology, belles-lettres origin, 英语词源]