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demented

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Dementing
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de⋅ment⋅ed

  [di-men-tid]
Use demented in a Sentence
–adjective
1. crazy; insane; mad.
2. affected with dementia.
Origin:
1635–45; dement + -ed 2

Related forms:
de⋅ment⋅ed⋅ly, adverb
de⋅ment⋅ed⋅ness, noun

Synonyms:
1. lunatic, crazed, deranged, unbalanced.
Dementing
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de⋅ment

  [di-ment]
–verb (used with object) Obsolete.
to make mad or insane.
Origin:
1535–45; < LL dēmentāre to deprive of mind, equiv. to L dēment- (s. of dēmēns) out of one's mind (dē- de- + ment- (s. of mēns) mind) + -āre inf. suffix
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To demented
de·ment   (dĭ-měnt')   
tr.v.   de·ment·ed, de·ment·ing, de·ments

  1. To make (a person) insane.

  2. To cause (a person) to lose intellectual capacity.


[Late Latin dēmentāre, from Latin dēmēns, dēment-, senseless : dē-, de- + mēns, mind; see men-1 in Indo-European roots.]
de·ment·ed   (dĭ-měn'tĭd)   
adj.  

  1. Mentally ill; insane.

  2. Suffering from dementia or a loss of cognitive function.

de·ment'ed·ly adv., de·ment'ed·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

demented 
1644, from obsolete dement "drive mad" (1545), probably from M.Fr. dementer, from L.L. dementare "out of one's mind," from phrase de mente, from de + mente, abl. of mens mind." Dementia is attested from 1806; earlier form in Eng. was demency (1858), from Fr. démence. Dementia præcox is a Mod.L. form recorded from 1899 in Eng., 1891 in Ger., from Fr. démence précoce (1857). See precocious.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: de·ment·ed
Pronunciation: di-'ment-&d
Function: adjective
: MAD, INSANE —de·ment·ed·ly adverb —de·ment·ed·ness noun
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

demented de·ment·ed (dĭ-měn'tĭd)
adj.

  1. Mentally ill; insane.

  2. Suffering from dementia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Computing Dictionary

demented
Yet another term of disgust used to describe a program. The connotation in this case is that the program works as designed, but the design is bad. Said, for example, of a program that generates large numbers of meaningless error messages, implying that it is on the brink of imminent collapse.
[The Jargon File]
(1994-12-07)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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