Where does “*exquarto” come from?

*exquarto (Vulgar Latin) comes from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

Ancestry of “*exquarto”, step by step

StepLanguageWordMeaning
1Latinquārtusfourth
2Proto-Indo-Europeankʷeturtos—
3Proto-Indo-Europeankʷetwóresfour
4Proto-Indo-Europeankʷe-and

Words derived from “*exquarto”

Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Indo-European kʷeturtos →