verdure vs leafage

verdure and leafage both are nouns.

Word	Noun	Adjective	Verb	Adverb
verdure	Yes	No	No	No
leafage	Yes	No	No	No

As nouns, leafage is a hypernym of verdure; that is, leafage is a word with a broader meaning than verdure:

verdure: green foliage
leafage: the main organ of photosynthesis and transpiration in higher plants

Other hypernyms of verdure include foliage, leaf.

verdure (noun)	leafage (noun)
the lush appearance of flourishing vegetation	the main organ of photosynthesis and transpiration in higher plants
green foliage