Where does “ojanvarsi” come from?

ojanvarsi (Finnish) comes from Finnish varsi, from Proto-Finnic varci, from Proto-Finno-Permic warte.

Ancestry of “ojanvarsi”, step by step

ojanvarsi traces back through two separate lines of ancestry.

via Finnish varsi

StepLanguageWordMeaning
1Finnishvarsistalk; handle or haft of some tools; chiefly a...
2Proto-Finnicvarcistalk of a plant
3Proto-Finno-Permicwarte—

via Finnish oja

StepLanguageWordMeaning
1Finnishojaditch, trench; small natural brook
2Proto-Slavicojethill, shaft
3Proto-Indo-Europeanh₂oyHsos—
Every word from Proto-Finno-Permic warte →Every word from Proto-Finnic varci →Every word from Finnish varsi →