Lewis & Short

lăvācrum (lăvăcrum, Ven. Carm. 5, 5, 96), i, n. [lavo], a bath (post-class.), Gell. 1, 2, 2: lavacra pro sexibus separavit, Spart. Hadr. 18: lavacra in modum provinciarum exstructa, Amm. 16, 10, 14; Tert. Cor. 3: ferventia, Cael. Aur. Tard. 5, 11, 134: Vulg. Tit. 3, 5.