Definitions for: Cogency

[n] the quality of being logically valid
[n] persuasive relevance

Webster (1913) Definition: Co"gen*cy, n. [See Cogent.]
The quality of being cogent; power of compelling conviction;
conclusiveness; force.

An antecedent argument of extreme cogency. --J. H.
Newman.

Synonyms: rigor, rigour, validity

See Also: believability, credibility, credibleness, relevance, relevancy