billet : Idioms & Phrases


billet doux

  • noun a personal letter to a loved one expressing affection
    love letter.
WordNet

billet-doux

Bil`let-doux" noun
Etymology
F. billet note + doux sweet, L. dulcis.
Wordforms
plural Billets-doux
Definitions
  1. A love letter or note.
    A lover chanting out a billet-doux. Spectator.
Webster 1913