Where does “Cyllenius” come from?

Cyllenius (Latin) comes from Ancient Greek Κυλλήνιος, from Ancient Greek Κυλλήνη.

Ancestry of “Cyllenius”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Κυλλήνιος	—
2	Ancient Greek	Κυλλήνη	—

Cyllenius — Etymology, Origin & Word History | Etymology Explorer