Where does “Iddewiaeth” come from?

Iddewiaeth (Welsh) comes from Welsh Iddew, from Middle Welsh iðew, from Proto-Brythonic *jʉðew, from Latin Iūdaeus, from Ancient Greek Ἰουδαῖος, from Ancient Greek Ἰουδά, from Hebrew יְהוּדָה — Judas; Judah, Judas.

Iddewiaeth (Welsh): Judaism

Definitions

Judaism

Ancestry of “Iddewiaeth”, step by step

Step	Language	Word	Meaning
1	Welsh	Iddew	Jew
2	Middle Welsh	iðew	—
3	Proto-Brythonic	*jʉðew	—
4	Latin	Iūdaeus	Jewish, of or pertaining to the Jewish people
5	Ancient Greek	Ἰουδαῖος	Jew or Judean
6	Ancient Greek	Ἰουδά	Judah
7	Hebrew	יְהוּדָה	Judas; Judah, Judas

Every word from Hebrew יְהוּדָה →Every word from Ancient Greek Ἰουδά →Every word from Ancient Greek Ἰουδαῖος →