Where does “Trędowicz” come from?

Trędowicz (Polish) comes from Polish Trąd, from Old Polish trąd, from Proto-Slavic trǫtъ — drone.

Ancestry of “Trędowicz”, step by step

StepLanguageWordMeaning
1PolishTrądleprosy
2Old Polishtrąd—
3Proto-Slavictrǫtъdrone
Every word from Proto-Slavic trǫtъ →Every word from Old Polish trąd →Every word from Polish Trąd →