[ad. assumed L. *lavātōri-us, f. lavāre to wash: see LAVE v.1] Of or pertaining to washing.
1846. in Worcester citing Month. Rev.
1865. Merivale, Rom. Emp., VIII. lxvi. 217. The latter contrasts the lavatory resources of Rome with those of Grecian cities generally.
1890. [R. E. Forrest], in Cornh. Mag., Oct., 358. His linen long-coat is a perfect marvel of the lavatory art, so snowy white is it.