Where does “Raków” come from?

Raków (German) comes from Polish Raków, from Polish rak, from Old Polish rak, from Proto-Slavic rakъ, from Proto-Balto-Slavic rṓˀkas, from Proto-Indo-European wreh₃kʷos — looking backwards.

Ancestry of “Raków”, step by step

StepLanguageWordMeaning
1PolishRakówone of several villages in Poland
2Polishrakcancer; crayfish; crampon
3Old Polishrak—
4Proto-Slavicrakъcrayfish
5Proto-Balto-Slavicrṓˀkas—
6Proto-Indo-Europeanwreh₃kʷoslooking backwards
Every word from Proto-Indo-European wreh₃kʷos →Every word from Proto-Balto-Slavic rṓˀkas →Every word from Proto-Slavic rakъ →