leafage vs leaf

leafage and leaf both are nouns.

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

As nouns, leafage and leaf are synonyms defined as:

leafage and leaf: the main organ of photosynthesis and transpiration in higher plants

Other synonyms of leafage include foliage.

leafage (noun)	leaf (noun)
the main organ of photosynthesis and transpiration in higher plants	hinged or detachable flat section (as of a table or door)
	a sheet of any written or printed material (especially in a manuscript or book)
	the main organ of photosynthesis and transpiration in higher plants

leafage (verb)	leaf (verb)
	produce leaves, of plants
	turn over pages
	look through a book or other written material