Where does “Tartu” come from?

Tartu (English) comes from Estonian Tartu, from Estonian Tarbatu, from Estonian tarvas, from Proto-Finnic tarvas, from Proto-Finnic tawras, from Proto-Balto-Slavic taurás, from Proto-Indo-European táwros — wild bull, aurochs.

Ancestry of “Tartu”, step by step

StepLanguageWordMeaning
1EstonianTartu—
2EstonianTarbatu—
3Estoniantarvasaurochs; European bison, wisent
4Proto-Finnictarvas? aurochs
5Proto-Finnictawras—
6Proto-Balto-Slavictaurásaurochs, wisent
7Proto-Indo-Europeantáwroswild bull, aurochs
Every word from Proto-Indo-European táwros →Every word from Proto-Balto-Slavic taurás →Every word from Proto-Finnic tawras →