negator

negate

[ni-geyt, neg-eyt]
verb (used with object), negated, negating.
1.
to deny the existence, evidence, or truth of: an investigation tending to negate any supernatural influences.
2.
to nullify or cause to be ineffective: Progress on the study has been negated by the lack of funds.
verb (used without object), negated, negating.
3.
to be negative; bring or cause negative results: a pessimism that always negates.

Origin:
1615–25; < Latin negātus (past participle of negāre to deny, refuse), equivalent to neg- (variant of nec not; see neglect) + -ā- theme vowel + -tus past participle suffix

negator, negater, noun
renegate, verb (used with object), renegated, renegating.
self-negating, adjective
unnegated, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
negate (nɪˈɡeɪt)
 
vb
1.  to make ineffective or void; nullify; invalidate
2.  to deny or contradict
 
[C17: from Latin negāre, from neg-, variant of nec not + aio I say]
 
ne'gator
 
n
 
ne'gater
 
n

negator (nɪˈɡeɪtə)
 
n
electronics another name for NOT circuit

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

negate
1837, back formation from negation. Related: Negated; negates; negating.
Online Etymology Dictionary, © 2010 Douglas Harper
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