Where does “dau ddeg pedwar” come from?

dau ddeg pedwar (Welsh) comes from Welsh pedwar, from Middle Welsh pedwar, from Old Welsh petuar, from Proto-Brythonic pedwar, from Proto-Celtic *kʷetwores, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

dau ddeg pedwar (Welsh): twenty-four

Definitions

  1. twenty-four

Ancestry of “dau ddeg pedwar”, step by step

dau ddeg pedwar traces back through 3 separate lines of ancestry.

via Welsh pedwar

StepLanguageWordMeaning
1Welshpedwarfour
2Middle Welshpedwar
3Old Welshpetuar
4Proto-Brythonicpedwarfour
5Proto-Celtic*kʷetworesfour
6Proto-Indo-Europeankʷetwóresfour
7Proto-Indo-Europeankʷe-and

via Welsh dau

StepLanguageWordMeaning
1Welshdautwo
2Proto-Brythonic*dowtwo
3Proto-Celtic*duwotwo
4Proto-Indo-Europeandwóh₁two

via Welsh deg

StepLanguageWordMeaning
1Welshdegten; Soft mutation of teg
2Proto-Brythonicdegten
3Proto-Celticdekamten
4Proto-Indo-Europeandéḱm̥ten
Every word from Proto-Indo-European kʷe-