\Fal"si*fy\, v. t. [imp. & p. p. {Falsified}; p. pr. &
vb. n. {Falsifying}.] [L. falsus false + -ly: cf. F.
falsifier. See {False}, a.]
1. To make false; to represent falsely.
         The Irish bards use to forge and falsify everything
         as they list, to please or displease any man.
                                               --Spenser.
2. To counterfeit; to forge; as, to falsify coin.
3. To prove to be false, or untrustworthy; to confute; to
   disprove; to nullify; to make to appear false.
         By how much better than my word I am, By so much
         shall I falsify men's hope.           --Shak.
         Jews and Pagans united all their endeavors, under
         Julian the apostate, to baffie and falsify the
         prediction.                           --Addison.
4. To violate; to break by falsehood; as, to falsify one's
   faith or word. --Sir P. Sidney.
5. To baffle or escape; as, to falsify a blow. --Butler.
6. (Law) To avoid or defeat; to prove false, as a judgment.
   --Blackstone.
7. (Equity) To show, in accounting, (an inem of charge
   inserted in an account) to be wrong. --Story. Daniell.
8. To make false by multilation or addition; to tamper with;
   as, to falsify a record or document.

\Fal"si*fy\, v. i.
To tell lies; to violate the truth.
      It is absolutely and universally unlawful to lie and
      falsify.
      South.