Originally, in India, loose drawers or trousers, such as those worn, tied about the waist, by Mohammedan men and women; by extension, a similar garment adopted among Europeans, Americans, etc., for wear in the dressing room and during sleep; also, a suit consisting of drawers and a loose upper garment for such wear.
A garment, similar to the Oriental pyjama (which see), adopted among Europeans, Americans, and other Occidentals, for wear in the dressing room and during sleep; also, a suit of drawers and blouse for such wear.
Sometimes I'm so tired, I look down at what I'm wearing, and if it's comfortable enough to sleep in, I don't even make it into my pajamas. I'm looking down, and I'm like, 'T-shirt and stretchy pants? Yup, that's fine. It's pajama-y, good night.' Rebecca Romijn
I grew up with an impatience with the anti-scientific. So I'm a bit miffed with our current love affair with all things Eastern. If I sneeze on the set, 40 people hand me echinacea. But I'd no sooner take that than eat a pencil. Maybe that's why I took up boxing. It's my response to men in white pajamas feeling each other's chi. Hugh Laurie