Meaning

noun a man distinguished by exceptional courage and nobility and strength

noun the principal character in a play or movie or novel or poem

noun someone who fights for a cause

originFrom Middle English heroes, from Old French heroes, from Latin hērōs (“hero”), from Ancient Greek ἥρως (hḗrōs, “demi-god, hero”), possibly from Proto-Indo-European *ser- (“to watch over, protect”); if so, related to Latin servo (“protect”). Displaced Middle English heleð, haleð, from Old English hæleþ, hæle.

Etymology from Wiktionary, CC BY-SA 3.0