Where does “Wolak” come from?

Wolak (English) comes from Polish Wolak, from Polish wół, from Proto-Slavic volъ, from Proto-Balto-Slavic walas.

Ancestry of “Wolak”, step by step

StepLanguageWordMeaning
1PolishWolakox calf
2Polishwółox, steer
3Proto-Slavicvolъox
4Proto-Balto-Slavicwalas—
Every word from Proto-Balto-Slavic walas →Every word from Proto-Slavic volъ →Every word from Polish wół →