renewal vs renew

renewal is a noun but renew is not a noun.

Word	Noun	Adjective	Verb	Adverb
renewal	Yes	No	No	No
renew	No	No	Yes	No

renewal (noun)	renew (noun)
the conversion of wasteland into land suitable for use of habitation or cultivation
the act of renewing
filling again by supplying what has been used up

renewal (verb)	renew (verb)
	cause to appear in a new form
	reestablish on a new, usually improved, basis or make new or like new