Where does “Poszeidón” come from?

Poszeidón (Hungarian) comes from Ancient Greek Ποσειδῶν, from Latin Posīdōn.

Ancestry of “Poszeidón”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ποσειδῶν	Poseidon, god of earthquakes
2	Latin	Posīdōn	—

Poszeidón — Etymology, Origin & Word History | Etymology Explorer