Where does “toohiversu” come from?

toohiversu (Ingrian) comes from Proto-Finnic toohi, from Proto-Finnic tooši, from Baltic unknown.

Ancestry of “toohiversu”, step by step

toohiversu traces back through two separate lines of ancestry.

via Proto-Finnic toohi

StepLanguageWordMeaning
1Proto-Finnictoohibirchbark
2Proto-Finnictooši—
3Balticunknown—

via Ingrian versu

StepLanguageWordMeaning
1Ingrianversu—
2Old East Slavic*вьрзъ—
Every word from Baltic unknown →Every word from Proto-Finnic tooši →Every word from Proto-Finnic toohi →