dement Meaning, Definition & Usage

De*ment" transitive verb
Etymology
L. dementare, fr. demens, -mentis, out of one's mind, mad; de + mens mind. See Mental, and cf. Dementate.
Definitions
  1. To deprive of reason; to make mad. R. Bale.
De*ment" adjective
Etymology
L. demens, -mentis.
Definitions
  1. Demented; dementate. R. J. H. Newman.

Webster 1913