Where does “-eira” come from?

-eira (Old Portuguese) comes from Latin -āria, from Latin -ārius, from Proto-Italic *-āzios.

Ancestry of “-eira”, step by step

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

Words derived from “-eira”

Every word from Proto-Italic *-āzios →

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