What does "pertinency" mean?

The quality of being pertinent to the matter at hand; relevance.

What is a synonym for "pertinency"?

Common synonyms include: applicability, pertinence, relevance.

Pronounced //ˈpɜː(ɹ)tɪnənsi//.

/ˈpɜː(ɹ)tɪnənsi/ noun

noun ·Rare ·Advanced level

Noun

1
The quality of being pertinent to the matter at hand; relevance. uncountable, usually
"The fitness and pertinency of the apostle's discourse."
2
relevance by virtue of being applicable to the matter at hand wordnet
3
Something that is relevant to the matter at hand. countable, dated, usually
"We note the following pertinencies […]"

"The fitness and pertinency of the apostle's discourse."

From Latin pertineō.