Where does “metszünk” come from?

metszünk (Hungarian) comes from Hungarian -ünk, from Proto-Uralic -mVk — our one possession.

Ancestry of “metszünk”, step by step

Step	Language	Word	Meaning
1	Hungarian	-ünk	Used to form the first-person plural present...
2	Proto-Uralic	-mVk	our one possession