Where does “judio” come from?

judio (Old Spanish) comes from Latin Iūdaeus, from Ancient Greek Ἰουδαῖος, from Ancient Greek Ἰουδά, from Hebrew יְהוּדָה — Judas; Judah, Judas.

Ancestry of “judio”, step by step

Step	Language	Word	Meaning
1	Latin	Iūdaeus	—
2	Ancient Greek	Ἰουδαῖος	Jew or Judean
3	Ancient Greek	Ἰουδά	Judah
4	Hebrew	יְהוּדָה	Judas; Judah, Judas

judio — Etymology, Origin & Word History | Etymology Explorer