douceur

The story

1. Old French · derived fromdolçor
2. French · borrowed fromdouceur“sweetness”
3. English todaydouceur

Borrowed from French douceur (“sweetness”), from Old French dolçor, dulcur, etc., from Latin dulcōr + -em, from dulcis (“sweet”). Naturalized in Middle English as douceoure, dousour but treated as a French loanword from the 17th century onward. Doublet of dulcour.