Where does “Jokivuori” come from?

Jokivuori (Finnish) comes from Finnish Vuori, from Finnish -lä, from Finnish -as, from Proto-Finnic -s, from Proto-Finno-Ugric -s.

Ancestry of “Jokivuori”, step by step

Jokivuori traces back through two separate lines of ancestry.

via Finnish Vuori

StepLanguageWordMeaning
1FinnishVuorimountain large mass of earth and rock
2Finnish-läFront vowel variant of -la
3Finnish-asForms some adjectives; Forms some nouns
4Proto-Finnic-sForms nouns
5Proto-Finno-Ugric-s—

via Finnish joki

StepLanguageWordMeaning
1Finnishjokiriver
2Finnishsokeusblindness
3Finnishsokeablind
4Proto-Finnicsokedablind
Every word from Proto-Finno-Ugric -s →Every word from Finnish -lä →Every word from Finnish Vuori →