Lewis Short
prōlŭvĭum (noun N) : prolus
* An overflow; trop., an excess, abundance: castitatis,Ambros. Virg. 1, 4, 18; cf.: proluvium, profusio,Non. p. 373; Ter. Ad. 5, 9, 28 (Umpfenb. and Fleck. prolubium); id. ap. Serv. ad Verg. A. 3, 217.
Charlton T. Lewis, Charles Short, A Latin Dictionary