a suit of loose trousers and jacket for sleeping in 睡衣裤 a pair of pyjamas. 一套睡衣裤。 [as modifier]pyjama trousers. 睡裤。 ■[in sing.](pyjama)a pair of loose trousers tied by a drawstring around the waist, worn by both sexes in some Asian countries (亚洲男女围腰而系的)宽松裤
语源
early 19th cent.: from Urdu and Persian, from pāy 'leg' + jāma 'clothing'