Where does “paradīsiăcus” come from?

paradīsiăcus (Late Latin) comes from Byzantine Greek παραδεισιακός, from Ancient Greek παράδεισος, from Proto-Iranian paridayĵah.

Ancestry of “paradīsiăcus”, step by step

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

paradīsiăcus — Etymology, Origin & Word History | Etymology Explorer