instancy vs urgency

instancy and urgency both are nouns.

Word	Noun	Adjective	Verb	Adverb
instancy	Yes	No	No	No
urgency	Yes	No	No	No

As nouns, urgency is a hypernym of instancy; that is, urgency is a word with a broader meaning than instancy:

instancy (noun)	urgency (noun)
the quality of being insistent	pressing importance requiring speedy action
the quickness of action or occurrence	insistent solicitation and entreaty
	the state of being urgent; an earnest and insistent necessity
	an urgent situation calling for prompt action