A peignoir is a type of clothing that is typically worn over nightwear or lingerie. It is usually made of lightweight fabric such as chiffon, silk, or satin and is often sheer or semi-sheer. The term peignoir is derived from the French word for comb, as it was originally used to protect the hair while combing it. Other terms for peignoir include GOWN (4 letters), NEGLIGEE (8 letters), BATHROBE (8 letters), and ROBE (4 letters).