Where does “maćás” come from?

maćás (Proto-Indo-Iranian) comes from Proto-Indo-European moḱos, from Russian Мо́кошь, from Old East Slavic Мокошь, from Proto-Slavic *Mokošь.

Ancestry of “maćás”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	moḱos	—
2	Russian	Мо́кошь	—
3	Old East Slavic	Мокошь	—
4	Proto-Slavic	*Mokošь	—

maćás — Etymology, Origin & Word History | Etymology Explorer