Strong’s Lexicon
Defintion - To contend earnestly, to struggle for
Word Origin - Word Origin: Derived from the preposition ἐπί (epi, meaning “upon” or “over”) and the verb ἀγωνίζομαι (agonizomai, meaning “to struggle” or “to contend”).
Usage The verb ἐπαγωνίζομαι is used to describe a vigorous and determined effort, often in the context of a struggle or contest. It conveys the idea of striving with intense focus and dedication, particularly in the defense or pursuit of a cause or belief. In the New Testament, it is used to encourage believers to contend earnestly for the faith, emphasizing the importance of standing firm in the truth of the Gospel.
HELPS Word-studies
1864 epagōnízomai (from 1909 /epí, “focused on” and 73 /agṓn, “a contest, competition”) – properly, to contend (literally, “struggle upon, appropriately”), i.e. with skill and commitment in opposing whatever is not of faith (God’s persuasion).