Lewis Short
(verb) : dēmento, āre, 1, and n. id..
* Act., to drive mad, to craze, deprive of mind: dementatus,Cassiod. Amic. 21: ἐξιστάναι ἰδιωτικῶς, Gloss. Graec. Lat.; esp. to bewitch, delude: propter quod magiis suis dementasset eos,Vulg. Act. 8, 11.
* Neut., to rave, be out of one's mind: semper dementabat,Lact. Mort. Pers. 7, 9.
Charlton T. Lewis, Charles Short, A Latin Dictionary