Lewis Short
baptisma | baptismus, i | baptismum, i (noun N.m.n) = βάπτισμα: .
* A dipping in, dipping under, washing, ablution, Prud. Psych. 103; Apoth. 697; Vulg. Marc. 7, 4; 7, 8: mundi,i. e. the general deluge,Tert. Bapt. 8.
* Esp., Christian baptism, Vulg. Eph. 4, 5; in the Church fathers very freq.—A parallel form , , , Cod. Th. 16, 6, 1; Vulg. Marc. 11, 30 al.—, , , Tert. Bapt. 15; Aug. Serm. Temp. 36; Vulg. Matt. 21, 25 al.
Charlton T. Lewis, Charles Short, A Latin Dictionary