Where does “Clitunno” come from?

Clitunno (Italian) comes from Latin Clitumnus, from Latin -umnus.

Ancestry of “Clitunno”, step by step

Step	Language	Word	Meaning
1	Latin	Clitumnus	of or pertaining to the Clitunno
2	Latin	-umnus	—

Clitunno — Etymology, Origin & Word History | Etymology Explorer