Where does “Gilewicz” come from?

Gilewicz (Polish) comes from Polish Gil, from Proto-Slavic gylь — bullfinch.

Ancestry of “Gilewicz”, step by step

StepLanguageWordMeaning
1PolishGilbullfinch
2Proto-Slavicgylьbullfinch
Every word from Proto-Slavic gylь →Every word from Polish Gil →