出典:Wiktionary
Originally from French chambre or cabinet de toilette, used for private grooming areas and then euphemistically for the locations of chamber pots and the plumbing fixtures which took their name from the room.[1] Now generally understood as a direct (even impolitely overly direct) reference to the fixtures.
toilet room (複数形 toilet rooms)
As a lavatory, the simple term toilet is now generally used for both the fixture and the place, although toilet room is still sometimes encountered where clarity is desired.
出典:『Wiktionary』 (2016/04/26 06:27 UTC 版)
toilet-room (複数形 toilet-rooms)