Lewis Short
(verb) : căco, āvi, ātum, āre, and
* A.,—κακάω, to go to stool, to be at stool.
* Neutr., Pompon. ap. Non. p. 84, 2: toto decies in anno, Cat. 23, 20; *Hor. S. 1, 8, 38; Mart. 12, 61, 10.
* Act., Pompon. ap. Non. p. 84, 1 (Com. Rel. p. 209 Rib.): canes odorem mixtum cum merdis cacant,Phaedr. 4, 17, 25; Mart. 3, 89.—Also, to defile with excrement: cacata charta,Cat. 36, 1 and 20.
Charlton T. Lewis, Charles Short, A Latin Dictionary