Where does “Esaias” come from?

Esaias (English) comes from Ancient Greek Ἠσαΐας, from Hebrew יְשַׁעְיָהוּ.

Ancestry of “Esaias”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἠσαΐας	—
2	Hebrew	יְשַׁעְיָהוּ	—