Where does “Tecușanu” come from?

Tecușanu (Romanian) comes from Romanian Tecuci, from Bulgarian тека, from Old Church Slavonic тещи, from Proto-Slavic teťi, from Proto-Balto-Slavic tektej, from Proto-Indo-European tekʷ- — to run, to flow.

Ancestry of “Tecușanu”, step by step

StepLanguageWordMeaning
1RomanianTecucia Romanian city
2Bulgarianтекаto flow, to run, to gutter; to leak, to ooze, to...
3Old Church Slavonicтещиto flow
4Proto-Slavicteťito flow, run
5Proto-Balto-Slavictektej—
6Proto-Indo-Europeantekʷ-to run, to flow
Every word from Proto-Indo-European tekʷ- →Every word from Proto-Balto-Slavic tektej →Every word from Proto-Slavic teťi →