Meaning

adjective relating to or being a Christian church believing in personal conversion and the inerrancy of the Bible especially the 4 Gospels

adjective of or pertaining to or in keeping with the Christian gospel especially as in the first 4 books of the New Testament

adjective marked by ardent or zealous enthusiasm for a cause

originFrom evangelic + -al, from Old French evangelique, from Latin evangelium, from Ancient Greek εὐαγγέλιον (euangélion, “good news”).

Etymology from Wiktionary, CC BY-SA 3.0