I. də̇ˈment, dēˈ- transitive verb
( -ed/-ing/-s )
Etymology: Late Latin dementare, from Latin dement-, demens out of one's mind, mad, from de- + ment-, mens mind — more at mind
archaic : to deprive of reason
II. noun
( -s )
Etymology: Middle French, from Latin dement-, demens
: one who is demented