con-căco, āvi, ātum, 1,
v. a., to defile with ordure, to fill with defilement : totam regiam, Phaedr. 4, 17, 11: se, Sen. Apoc. 4 fin. : catillus concacatus, Petr. 66.
con-cacō āvī, ātus, āre, to defile with ordure, cover with filth: totam regiam, Ph. ...
An Elementary Latin Dictionary