Plausibility

Plau`si*bil"i*ty (?), n. [Cf. F. plausibilité.] 1. Something worthy of praise. [Obs.]

Integrity, fidelity, and other gracious plausibilities.
E. Vaughan.

2. The quality of being plausible; speciousness.

To give any plausibility to a scheme.
De Quincey.

3. Anything plausible or specious. R. Browning.