dement

[ dih-ment ]
/ dɪˈmɛnt /

verb (used with object) Obsolete.

to make mad or insane.

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Origin of dement

1535–45; <Late Latin dēmentāre to deprive of mind, equivalent to Latin dēment- (stem of dēmēns) out of one's mind (dē-de- + ment- (stem of mēns) mind) + -āre infinitive suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for dement

British Dictionary definitions for dement

dement
/ (dɪˈmɛnt) /

verb

(intr) to deteriorate mentally, esp because of old age
(tr) rare to drive mad; make insane

Word Origin for dement

C16: from Late Latin dēmentāre to drive mad, from Latin de- + mēns mind
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012