Where does “oksennus” come from?

oksennus (Finnish) comes from Finnish oksentaa, from Proto-Finnic oksentadak, from Proto-Finno-Permic oksa-.

oksennus (Finnish): vomit

Definitions

Step	Language	Word	Meaning
1	Finnish	oksentaa	to vomit, regurgitate, throw up, puke, barf, bowk
2	Proto-Finnic	oksentadak	to vomit
3	Proto-Finno-Permic	oksa-	—

oksennus — Etymology, Origin & Word History | Etymology Explorer