Where does “heroes” come from?

heroes (Old French) comes from Latin hērōs, from Ancient Greek ἥρως, from Proto-Indo-European sēr-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

Ancestry of “heroes”, step by step

Step	Language	Word	Meaning
1	Latin	hērōs	demigod, hero
2	Ancient Greek	ἥρως	a hero of the Trojan War: any of the major...
3	Proto-Indo-European	sēr-	to flow
4	Proto-Indo-European	ser-	to flow; to guard; to bind, to tie together

Words derived from “heroes”

Every word from Proto-Indo-European ser- →Every word from Proto-Indo-European sēr- →Every word from Ancient Greek ἥρως →