Welsh gwraidd

← Breton gwrizienn (cognate)

← Proto-Celtic *wradyos (inherited)

← Proto-Indo-European (mention)

← Proto-Indo-European *wréh₂ds (inherited)

← Cornish gwreydh (cognate)

← Middle Welsh gwreidd (inherited)

→ Breton gwrizienn (cognate)

→ Welsh gwreiddyn (affix)

→ Welsh gwreiddiol (affix)

→ Welsh gwreiddiadur (suffix)

→ Welsh gwreiddio (affix)

→ Welsh canwraidd (compound)

→ Galician barda (cognate)

→ Cornish gwreydh (cognate)

→ Ossetian уырыдзы (cognate)