Where does “ήρωας” come from?

ήρωας (Greek) comes from Ancient Greek ἥρως, from Proto-Indo-European sēr-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

ήρωας (Greek): hero

Definitions

hero

Ancestry of “ήρωας”, step by step

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

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