amental

ament

2 [ey-ment, ey-muhnt]
noun
a person who has amentia.

Origin:
1890–95; < Latin āment- (stem of āmēns out of one's mind, mad), equivalent to ā- a-4 + ment-; see mental

amental [ey-men-tl] , adjective
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World English Dictionary
ament1 (ˈæmənt, ˈeɪmənt)
 
n
another name for catkin Also called: amentum
 
[C18: from Latin āmentum strap, thong]
 
amen'taceous1
 
adj
 
amen'tiferous1
 
adj

ament2 (æˈmɛnt, ˈeɪmənt)
 
n
psychiatry a mentally deficient person
 
[C19: from Latin āment-, āmens without mind; see amentia]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

ament
1894, from L. amentia "madness," from a- "away from" + mentem "mind."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

ament a·ment (ā'měnt', ā'mənt)
n.
A person whose intellectual capacity remains undeveloped.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
ament   (ām'ənt, ā'mənt)  Pronunciation Key 
See catkin.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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