Peignoir
Peignoir is the name for the long, sheer or chiffon outer-garment, worn over by ladies over their negligee. To say it is only a light dressing gown diminishes the frivolous beauty of this translucent garment, worn by women in the privacy of their boudoir. They take their name from the French word peigner, meaning to comb the hair — a reference to the ladies who used to sit at their dressing tables in their chiffons and silks while they brushed their hair.