Where does “deusaith” come from?

deusaith (Welsh) comes from Welsh saith, from Middle Welsh seith, from Proto-Brythonic seiθ, from Proto-Celtic sextam, from Proto-Indo-European septḿ̥ — seven.

deusaith (Welsh): fourteen

Definitions

  1. fourteen

Ancestry of “deusaith”, step by step

deusaith traces back through two separate lines of ancestry.

via Welsh saith

StepLanguageWordMeaning
1Welshsaithseven
2Middle Welshseithseven
3Proto-Brythonicseiθseven
4Proto-Celticsextamseven
5Proto-Indo-Europeanseptḿ̥seven

via Welsh dau

StepLanguageWordMeaning
1Welshdautwo
2Proto-Brythonic*dowtwo
3Proto-Celtic*duwotwo
4Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European septḿ̥ →
deusaith — Etymology, Origin & Word History | Etymology Explorer