/
ˈfɔːlsɪfʌɪ, 
ˈfɒls-/
v.
 (falsifies, falsifying, falsified)
  - alter (information or evidence) so as to mislead.
- prove (a statement or theory) to be false.
Derivative
- falsifiability n.
- falsifiable adj.
- falsification n.
Etymology
ME: from Fr. falsifier or med. L. falsificare, from L. falsificus ‘making false’, from falsus ‘false’.