Lewis Short
praedĭātor (noun M) : praedium
* A purchaser of mortgaged estates sold at auction, a dealer in landed estates, Cic. Att. 12, 14, 2; 12, 17: qui mercatur a populo praediator appellatur,Gai. Inst. 2, 61. Persons who followed this business were familiar with mercantile law, and were often consulted as lawyers, Cic. Balb. 20, 45; Dig. 23, 3, 54in lemm.: praediator, ὠνητὴς ὑπαρχόντων, Gloss. Philox.
Charlton T. Lewis, Charles Short, A Latin Dictionary