Where does “Ἕλενος” come from?

Ἕλενος (Ancient Greek) comes from Ancient Greek ἑλένη, from Proto-Indo-European swel- — to smolder; burn; scorch; beam, board, frame,...

Ancestry of “Ἕλενος”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἑλένη	torch, firebrand; corposant, St. Elmo's fire;...
2	Proto-Indo-European	swel-	to smolder; burn; scorch; beam, board, frame,...

Ἕλενος — Etymology, Origin & Word History | Etymology Explorer