Falsification

Nuttall's Standard Dictionary of the English Language · 1890 · p. 77

fawl'-se-fe-ka'-shun, s. the act of falsifying; making a thing appear to be something which it is not; confutation. appearance; one who makes false coin; one who invents falsehood; one who proves a thing to be false. ] to be false; to violate or break by falsehood: v.n. to tell lies; to violate the truth.