Where does “-mere” come from?

-mere (English) comes from Ancient Greek μέρος, from Proto-Hellenic *(h)méros.

-mere (English): Forming nouns with the sense of part, segment

Definitions

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

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