Where does “mohák” come from?

mohák (Hungarian) comes from Hungarian moha, from Hungarian moh, from Proto-Slavic mъxъ, from Proto-Balto-Slavic muša, from Proto-Indo-European mews- — moss.

Ancestry of “mohák”, step by step

Step	Language	Word	Meaning
1	Hungarian	moha	moss
2	Hungarian	moh	moss; eager, greedy, avid
3	Proto-Slavic	mъxъ	moss
4	Proto-Balto-Slavic	muša	—
5	Proto-Indo-European	mews-	moss

Every word from Proto-Indo-European mews- →Every word from Proto-Balto-Slavic muša →Every word from Proto-Slavic mъxъ →