profusion vs verdancy

profusion and verdancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
profusion	Yes	No	No	No
verdancy	Yes	No	No	No

As nouns, verdancy is a hyponym of profusion; that is, verdancy is a word with a more specific, narrower meaning than profusion:

Other hyponyms of profusion include overgrowth, greenness, verdure, wilderness.

profusion (noun)	verdancy (noun)
the property of being extremely abundant	the lush appearance of flourishing vegetation