Welsh drws

← Proto-Brythonic *drus (inherited)

← Proto-Celtic *dworestus (inherited)

← Proto-Celtic *dwār (inherited)

← Welsh dôr (mention)

← Proto-Indo-European *dʰwer- (root)

← Proto-Indo-European *dʰwṓr (inherited)

← Old Welsh drus (inherited)

← Old Irish dorus (cognate)

← Middle Welsh drws (inherited)

→ Irish druid (cognate)

→ Irish doras (cognate)

→ Scottish Gaelic druid (cognate)

→ Manx dorrys (cognate)