Where does “həřřéyō” come from?

həřřéyō (Proto-Hellenic) comes from Proto-Indo-European sēr-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

Ancestry of “həřřéyō”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	sēr-	—
2	Proto-Indo-European	ser-	to flow; to guard; to bind, to tie together

həřřéyō — Etymology, Origin & Word History | Etymology Explorer