Where does “-eri” come from?

-eri (Sicilian) comes from Vulgar Latin *-airu, from Latin -ārius, from Proto-Italic *-āzios.

-eri (Sicilian): -er

Definitions

Step	Language	Word	Meaning
1	Vulgar Latin	*-airu	—
2	Latin	-ārius	—
3	Proto-Italic	*-āzios	—

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