Webster's Revised Unabridged Dictionary · 1913

Falsity

Falsity , noun

[Latin falsitas: compare French fausseté, Old French also, falsité. See False, a.]

1.
The quality of being false; coutrariety or want of conformity to truth.
Probability does not make any alteration, either in the truth or falsity of things. — South
2.
That which is false; falsehood; a lie; a false assertion.
Men often swallow falsities for truths. — Sir T. Brown