Where does “kawunia” come from?

kawunia (Polish) comes from Polish -unia, from Polish -a, from Old Polish -ą, from Proto-Slavic -a, from Proto-Indo-European -ōd.

Ancestry of “kawunia”, step by step

StepLanguageWordMeaning
1Polish-uniafeminine diminutive noun suffix
2Polish-aforms nominative feminine nouns
3Old Polish-ąforms third person plural of verbs
4Proto-Slavic-aid
5Proto-Indo-European-ōd—
Every word from Proto-Indo-European -ōd →Every word from Polish -a →Every word from Proto-Slavic -a →