evangelical vs evangel

evangelical is not a noun while evangel is a noun.

Word	Noun	Adjective	Verb	Adverb
evangelical	No	Yes	No	No
evangel	Yes	No	No	No

evangelical (noun)	evangel (noun)
	the four books in the New Testament (Matthew, Mark, Luke, and John) that tell the story of Christ's life and teachings

evangelical (adjective)	evangel (adjective)
of or pertaining to or in keeping with the Christian gospel especially as in the first 4 books of the New Testament
relating to or being a Christian church believing in personal conversion and the inerrancy of the Bible especially the 4 Gospels
marked by ardent or zealous enthusiasm for a cause