Proto-Celtic *bolgos

→ English bulge (derived)

→ English bung (derived)

→ Welsh bol (inherited)

→ Welsh bola (inherited)

→ Irish bolg (inherited)

→ Galician boxo (derived)

→ Ancient Greek μολγός (cognate)

→ Manx bolg (inherited)

→ Latin bulga (derived)

→ Polish budżet (derived)

→ Old Irish bolg (inherited)