Where does “paradīs” come from?

paradīs (Old High German) comes from Latin paradīsum, from Ancient Greek παράδεισος, from Proto-Iranian paridayĵah.

Ancestry of “paradīs”, step by step

Step	Language	Word	Meaning
1	Latin	paradīsum	—
2	Ancient Greek	παράδεισος	the garden owned by the Persian nobility;...
3	Proto-Iranian	paridayĵah	—

paradīs — Etymology, Origin & Word History | Etymology Explorer