Where does “Selinus” come from?

Selinus (Latin) comes from Ancient Greek Σελινοῦς, from Ancient Greek σέλινον — celery.

Ancestry of “Selinus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Σελινοῦς	—
2	Ancient Greek	σέλινον	celery

Selinus — Etymology, Origin & Word History | Etymology Explorer