bathrobe

noun

1. a long, loose, coat-like garment, often tied with a belt of the same material, worn before and after a bath, over sleepwear, or as leisure wear at home.

noun

1. a loose-fitting garment of towelling, for wear before or after a bath or swimming
2. US and Canadian a dressing gown

n.

1894, from bath (n.) + robe (n.).