Where does “Sowul” come from?

Sowul (Polish) comes from Polish Sowa, from Old Polish sowa, from Proto-Slavic sova — owl.

Ancestry of “Sowul”, step by step

StepLanguageWordMeaning
1PolishSowaowl
2Old Polishsowa—
3Proto-Slavicsovaowl
Every word from Proto-Slavic sova →Every word from Old Polish sowa →Every word from Polish Sowa →