Where does “dwy” come from?

dwy (Welsh) comes from Welsh dau, from Proto-Brythonic *dow, from Proto-Celtic *duwo, from Proto-Indo-European dwóh₁ — two.

dwy (Welsh): feminine of dau; two

Definitions

  1. feminine of dau; two

Ancestry of “dwy”, step by step

dwy traces back through two separate lines of ancestry.

via Welsh dau

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

via Proto-Celtic dwī

StepLanguageWordMeaning
1Proto-Celticdwī—
2Proto-Indo-Europeandw-ih₂—

Words derived from “dwy”

Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Celtic *duwo →Every word from Proto-Brythonic *dow →