Where does “*tupa” come from?

*tupa (Proto-Finno-Ugric) comes from Icelandic stofa, from Old Norse stofa, from German stōve, from Old Saxon *stova, from Proto-West Germanic *stobu.

Ancestry of “*tupa”, step by step

StepLanguageWordMeaning
1Icelandicstofaa living room; a classroom, a room
2Old Norsestofaroom, living room
3Germanstōve
4Old Saxon*stova
5Proto-West Germanic*stobu

Words derived from “*tupa

Every word from Proto-West Germanic *stobuEvery word from Old Saxon *stovaEvery word from German stōve