Where does “Elias” come from?

Elias comes from Ancient Greek Ἠλίας, from Hebrew אֵלִיָּה, ultimately from Hebrew אלי.

Ancestry of “Elias”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἠλίας	—
2	Hebrew	אֵלִיָּה	{{l\|en\|Jah}} is my God

Elias — Etymology, Origin & Word History | Etymology Explorer