1800, pai jamahs "loose trousers tied at the waist," worn by Muslims in India and adopted by Europeans there, especially for nightwear, from Hindi pajama, probably from Persian paejamah, literally "leg clothing," from pae "leg" (from PIE root *ped- (1) "foot," see foot (n.)) + jamah "clothing." Modern spelling (U.S.) is from 1845. British spelling tends toward pyjamas.
实用例句
1. It was a freak of mine to wear pink pajamas.
穿上粉红色睡衣是我一时的奇想.
来自《简明英汉词典》
2. At bedtime, I take off my clothes and put on my pajamas.