Where does “Maślorz” come from?

Maślorz (Polish) comes from Polish masło, from Proto-Slavic maslo — oil; butter.

Ancestry of “Maślorz”, step by step

Step	Language	Word	Meaning
1	Polish	masło	butter
2	Proto-Slavic	maslo	oil; butter

Maślorz — Etymology, Origin & Word History | Etymology Explorer