falsify

verb

1. 1

   insert words into texts, often falsifying it thereby

2. 2

   falsify knowingly

   She falsified the records

3. 3

   prove false

   Falsify a claim

4. 4

   make false by mutilation or addition; as of a message or story

5. 5

   tamper, with the purpose of deception

   Fudge the figures

   cook the books