Lewis Short
mătella | mătēla (noun F) : or , , dim. matula
* A pot, a vessel for liquids.
* In gen.: matella aquae, Plaut. Fragm. ap. Non. 543, 17; Varr. ib. 19; Cato, R. R. 10; 11.—Prov.: mus in matella, of a person in difficulty,Petr. 58, 9.
* In partic., a chamber-pot, Mart. 12, 32, 13; id. 6, 89, 1; 14, 119 in lemm.; Sen. Ben. 3, 26, 2.—Hence, prov.: matellam praestare alicui,i. e. to perform for one the most menial offices,Mart. 10, 11, 3.—Transf., of a prostitute, Petr. 45, 8.
Charlton T. Lewis, Charles Short, A Latin Dictionary