c. 1300, "to overlay with gold, inlay," from Old French couchier "to lay down, place; go to bed, put to bed," from Latin collocare "to lay, place, station, arrange," from com- "together" (see com-) + locare "to place" (see locate). Meaning "to put into words" is from 1520s. Related: Couched; couching. Heraldic couchant ("lying down with the head up") is late 15c., from the French present participle.
couch (n.)
mid-14c., from Old French couche (12c.) "a bed, lair," from coucher "to lie down," from Latin collocare (see couch (v.)). Traditionally, a couch has the head end only raised, and only half a back; a sofa has both ends raised and a full back; a settee is like a sofa but may be without arms; an ottoman has neither back nor arms, nor has a divan, the distinctive feature of which is that it goes against a wall. Couch potato first recorded 1979.
实用例句
1. Roy swung his legs carefully off the couch and sat up.
罗伊小心地把腿挪下沙发，坐了起来。
来自柯林斯例句
2. We were sitting on the couch in the living room watching TV.
我们就坐在客厅的沙发上看电视。
来自柯林斯例句
3. She slipped out of the jacket and tossed it on the couch.