Where does “Mithridātēs” come from?

Mithridātēs (Latin) comes from Ancient Greek Μιθριδάτης, from Old Persian *Miθradātah.

Ancestry of “Mithridātēs”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Μιθριδάτης	—
2	Old Persian	*Miθradātah	—

Mithridātēs — Etymology, Origin & Word History | Etymology Explorer