The Collaborative International Dictionary
Dementate
Dementate \De*men"tate\, a. [L. dementatus, p. p. See Dement, v. t.] Deprived of reason.
Arise, thou dementate sinner!
--Hammond.
Dementate
Dementate \De*men"tate\v. t.
To deprive of reason; to dement. [R.]
--Burton.
Wiktionary
dementate
(context obsolete English) Deprived of reason. v
(context obsolete English) To dement, to make crazy.