The quality of being pertinent to the matter at hand; relevance.(noun)
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Use "pertinency" in a sentence
"With a writer of my prosaic literalness and pertinency of point of view, this all shoves toward grossness — positively even towards the far more damnable closeness."
"You need be under no apprehension from the memory of the past, in which you may have observed the power of that people and their pertinency in self-defense; though these might reasonably excite fear, if they were still animated by the valor of former times."
"The world will always be grateful to the people of Vietnam for having shown it how the size of a country is immaterial, how the number of the foe matters not, how the power of an enemy is of no pertinency."