Where does “oksennos” come from?

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

oksennos (Finnish): Alternative form of oksennus

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-	—

oksennos — Etymology, Origin & Word History | Etymology Explorer