Where does “tupa” come from?

tupa (Proto-Finnic) comes from Proto-Germanic stubō, from Latin extufare, from Ancient Greek τύφος — steam.

tupa (Proto-Finnic): room

Definitions

Step	Language	Word	Meaning
1	Proto-Germanic	stubō	room, heated room, living room; room, sitting...
2	Latin	extufare	to heat with steam
3	Ancient Greek	τύφος	steam

tupa — Etymology, Origin & Word History | Etymology Explorer