to make (information, etc) false by fraudulent alteration
to make (a document, accounts, etc) false by fraudulent alteration
to represent (something) falsely; to misrepresent
to prove or declare (a statement, etc) false
falsifiable adj
falsification /-fiʹkaysh(ə)n/ noun
[Middle English falsifien via French from Latin falsificare, from falsus: see false]