Where does “Sadducaeus” come from?

Sadducaeus (Latin) comes from Ancient Greek Σαδδουκαῖος, from Hebrew צדוקי — Sadducee.

Ancestry of “Sadducaeus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Σαδδουκαῖος	—
2	Hebrew	צדוקי	Sadducee

Sadducaeus — Etymology, Origin & Word History | Etymology Explorer