Where does “Chersonēsus” come from?

Chersonēsus (Latin) comes from Ancient Greek Χερσόνησος, from Ancient Greek νῆσος — island.

Ancestry of “Chersonēsus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Χερσόνησος	—
2	Ancient Greek	νῆσος	island

Chersonēsus — Etymology, Origin & Word History | Etymology Explorer