AUTHENTICITY
Source: 567
Au′then‐tic″i‐ty (�), n. [[Cf. F. authenticité.]] 1. 1. The quality of being authentic or of established authority for truth and correctness.
2. 2. Genuineness; the quality of being genuine or not corrupted from the original.
☞ In later writers, especially those on the evidences of Christianity, authenticity is often restricted in its use to the first of the above meanings, and distinguished from qenuineness.