Where does “-mero” come from?

-mero (Italian) comes from Ancient Greek μέρος, from Proto-Hellenic *(h)méros.

-mero (Italian): -mere, -mer; -merous, -meric

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	μέρος	part, component, region; share, portion; one's...
2	Proto-Hellenic	*(h)méros	—

-mero — Etymology, Origin & Word History | Etymology Explorer