billet-doux的词源

英文词源

billet-doux (n.)

also billet doux, 1670s, "love letter," French, literally "sweet note," from billet "document, note" (14c., diminutive of bille; see bill (n.1)) + doux "sweet," from Latin dulcis (see dulcet).

中文词源

billet-doux：情书

法语词。来自bill, 文件，书信。doux, 甜，同dulcet, 甜美的。

该词的英语词源请访问趣词词源英文版：billet-doux 词源，billet-doux 含义。