Welsh budr

← Proto-Brythonic *bʉdr (inherited)

← Proto-Celtic *bowdrom (inherited)

← Proto-Indo-European *gʷewh₁- (root)

← Proto-Indo-European (inherited)

← Proto-Indo-European *gʷewh₁- (mention)

← Middle Welsh budyr (inherited)

→ Galician bosta (cognate)

→ Galician bouta (cognate)

→ Portuguese bosta (cognate)