Where does “Елена” come from?

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

Ancestry of “Елена”, step by step

StepLanguageWordMeaning
1Old Church SlavonicЕлена
2Ancient GreekἙλένηHelena; Helen
3Ancient GreekἝλενος
4Ancient Greekἑλένηtorch, firebrand; corposant, St. Elmo's fire;...
5Proto-Indo-Europeanswel-to smolder; burn; scorch; beam, board, frame,...
Every word from Proto-Indo-European swel-Every word from Ancient Greek ἑλένηEvery word from Ancient Greek Ἕλενος