disprove

[dis-proov]
verb (used with object), disproved, disproving.
to prove (an assertion, claim, etc.) to be false or wrong; refute; invalidate: I disproved his claim.

Origin:
1350–1400; Middle English < Anglo-French, Old French desprover, equivalent to des- -dis-1 + prover to prove

disprovable, adjective
disprover, noun
undisprovable, adjective
undisproved, adjective

1. deny, disapprove, disprove, rebut, refute (see synonym study at deny) ; 2. disapprove, disprove, rebut, refute.


discredit, contradict, negate, confute.
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World English Dictionary
disprove (dɪsˈpruːv)
 
vb
(tr) to show (an assertion, claim, etc) to be incorrect
 
dis'provable
 
adj
 
dis'proval
 
n

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

disprove
c.1380, from O.Fr. desprover, from des- "dis-" + prover "to prove."
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
He was now in a position to prove or disprove the charge.
There is nothing you can prove or disprove because you have the information.
Popular acceptance, or the lack thereof, does not prove or disprove an artist's
  worth.
While it would prove academic misconduct it would not disprove climate change.
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