Where does “Elenescu” come from?

Elenescu (Romanian) comes from Romanian elenă, from Greek Έλληνας, from Ancient Greek Ἕλλην, from Ancient Greek Ἑλλοί, from Ancient Greek ἕλλα, from Proto-Hellenic *héllā.

Ancestry of “Elenescu”, step by step

Step	Language	Word	Meaning
1	Romanian	elenă	Greek language
2	Greek	Έλληνας	Greek or Hellene
3	Ancient Greek	Ἕλλην	Greek, one who is from Greece or speaks Greek;...
4	Ancient Greek	Ἑλλοί	The Greeks in Dodona
5	Ancient Greek	ἕλλα	seat
6	Proto-Hellenic	*héllā	—

Every word from Proto-Hellenic *héllā →Every word from Ancient Greek ἕλλα →Every word from Ancient Greek Ἑλλοί →