Where does “korycizna” come from?

korycizna (Polish) comes from Polish koryto, from Proto-Slavic koryto — trough.

Ancestry of “korycizna”, step by step

StepLanguageWordMeaning
1Polishkorytotrough
2Proto-Slavickorytotrough
Every word from Proto-Slavic koryto →Every word from Polish koryto →
korycizna — Etymology, Origin & Word History | Etymology Explorer