Where does “slugar” come from?

slugar (Romanian) comes from Romanian -ar, from Latin -ārius, from Proto-Italic *-āzios.

Ancestry of “slugar”, step by step

Step	Language	Word	Meaning
1	Romanian	-ar	-er
2	Latin	-ārius	—
3	Proto-Italic	*-āzios	—

slugar — Etymology, Origin & Word History | Etymology Explorer