Where does “kłapoń” come from?

kłapoń (Polish) comes from Polish -oń, from Proto-Slavic *-onь.

Ancestry of “kłapoń”, step by step

StepLanguageWordMeaning
1Polish-ońforms masculine nouns
2Proto-Slavic*-onь—
Every word from Proto-Slavic *-onь →Every word from Polish -oń →