Welsh bedd

← Breton bez (cognate)

← Proto-Celtic *bodyom (inherited)

← English bed (cognate)

← Proto-Indo-European *bʰedʰ- (derived)

← Cornish bedh (cognate)

← Middle Welsh beð (inherited)

← Celtiberian arkatobezom (cognate)

→ English bed (cognate)

→ Old Saxon bed (cognate)