Falsum
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat. In the civil law. A false or forged thing; a fraudulent simulation; a fraudulent counterfeit or imitation, such as a forged signature or instrument. Also falsification, which may be either by falsehood, concealment of the truth or fraudulent alteration, as by cutting out or erasing part of a writing.