Where does “Ισραήλ” come from?

Ισραήλ (Greek) comes from Ancient Greek Ἰσραήλ, from Hebrew יִשְׂרָאֵל — Israel.

Ancestry of “Ισραήλ”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἰσραήλ	Israel
2	Hebrew	יִשְׂרָאֵל	Israel

Ισραήλ — Etymology, Origin & Word History | Etymology Explorer