falsify

verb

1. (transitive)To alter so as to make false; especially when done with intent to deceive.

   “to falsify a record or document”

   “The Irish bards use to forge and falsify everything as they list, to please or displease any man.”

2. (transitive)To misrepresent.
3. (transitive)To counterfeit; to forge.

   “to falsify money”

4. (transitive)To prove to be false.

   “By how much better than my word I am, / By so much shall I falsify men's hope.”

   “Hovv much greater confirmation of his faith vvould he have received, had he ſeen our Saviour's prophecy ſtand good in the deſtruction of the temple, and the diſſolution of the Jevviſh œconomy, vvhen Jevvs and Pagans united all their endeavours under Julian the Apoſtate, to baffle and falſify the prediction?”

5. (transitive)To show (an item of charge inserted in an account) to be wrong.

   “It will allow the account to stand, with liberty to the plaintiff to surcharge and falsify it”

   “The chancery rules governing proceedings to surcharge and falsify accounts are applicable only where an account has been stated between the parties, or where something equivalent thereto has been done.”

6. (obsolete, transitive)To baffle or escape.

   “For disputants (as swordsmen use to fence / With blunted foyles) engage with blunted sense; / And as th' are wont to falsify a blow, / Use nothing else to pass upon a foe […]”

7. (obsolete, transitive)To violate; to break by falsehood.

   “to falsify one's faith or word”

   “he would not falsify his promise to Philanax”