Webster’s Revised Unabridged Dictionary · 1913
Mendacity
Men·dac′i·ty (mĕn·dăs′ĭ·ty̆), n.; pl. Mendacities (#). [L. mendacitas.] 1. The quality or state of being mendacious; a habit of lying. Macaulay.
2. A falsehood; a lie. Sir T. Browne.
Syn. — Lying; deceit; untruth; falsehood.