Where does “瑪納斯” come from?

瑪納斯 (Chinese) comes from Manchu ᠮᠠᠨᠠᠰ, from Written Oirat ᡏᠠᠨᠠᠰ — patroller.

Ancestry of “瑪納斯”, step by step

Step	Language	Word	Meaning
1	Manchu	ᠮᠠᠨᠠᠰ	—
2	Written Oirat	ᡏᠠᠨᠠᠰ	patroller

瑪納斯 — Etymology, Origin & Word History | Etymology Explorer