billet

billet-doux

A love letter. John was so enamored with the new girl in his class that he wrote a billet-doux and slipped it into her locker after school.

(humorous)

a love letter They've been exchanging billets-doux, but I don't know how serious it is.

Name	Pronounced	Usage
Knox	[nɔks]
Varg	-	Norwegian
Kaspars	-	Latvian
Merrilyn	-	English (Rare)
Dallas	['dæləs]
Clitus	-	Ancient Greek (Latinized)