Lewis Short
collātor | conl- (noun M) : (), , confero.
* He who bears, brings, places together, a contributor, etc. (ante- and post - class.): symbolarum,Plaut. Curc. 4, 1, 13.—Trop.: salutis,Fulg. Myth. 1, 1; also, one who pays a voluntary contribution to the state, Cod. Th. 7, 6, 5.
* One who compares, a comparer: et disputator,Aug. Ep. 147.
Charlton T. Lewis, Charles Short, A Latin Dictionary