On the other hand, they are great usurers and falsifiers of weights and measures, and merchandise, and coin; and liars and cheats.
All the loathsome diseases were gathered into this moat to afflict the forgers and falsifiers.
The life of Brutus offered good materials for the falsifiers of history, who worked with them after rhetorical fashion.
mid-15c., "to prove false," from Middle French falsifier (15c.), from Late Latin falsificare (see falsify). Meaning "to make false" is from c.1500. Earlier verb was simply falsen (c.1200). Related: Falsified; falsifying.