Where does “Μᾰττᾰθῐ́ᾱς” come from?

Μᾰττᾰθῐ́ᾱς (Ancient Greek) comes from Hebrew מַתִּתְיָהוּ, from Hebrew יהוה, from Proto-Semitic *haway-.

Ancestry of “Μᾰττᾰθῐ́ᾱς”, step by step

Step	Language	Word	Meaning
1	Hebrew	מַתִּתְיָהוּ	—
2	Hebrew	יהוה	YHWH, Yahweh, Jehovah; God; Yahweh
3	Proto-Semitic	*haway-	—

Μᾰττᾰθῐ́ᾱς — Etymology, Origin & Word History | Etymology Explorer