falsificar

v. falsify, forge; fabricate, make up; debase

v. falsify, counterfeit; doctor, fake; forge, fudge; gerrymander, pirate; vitiate, wangle

= falsify, fake, counterfeit.
Ex: These multipliers are low in comparison with those applied by commercial publishers, though the comparison is substantially falsified by the high costs for the institutions of originating publications in a number of parallel language versions.
Ex: Both the researcher and the student practice of 'fudging' involves faking, fabricating, or stealing data.
Ex: While the U.S. Treasury has taken steps to make it harder to counterfeit American currency, it's still apparently easy to make up fake money orders.