Where does “petwṓr” come from?

petwṓr (Proto-Indo-European) comes from Proto-Indo-European kʷetwṓr, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

Ancestry of “petwṓr”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeankʷetwṓr—
2Proto-Indo-Europeankʷetwóresfour
3Proto-Indo-Europeankʷe-and
Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Indo-European kʷetwṓr →