Old French biau

→ Middle English bel (mention)

→ Middle English beau (mention)

→ French beau (inherited)

→ Middle French beau (mention)

→ Old French fabliau (mention)

→ Old French baubel (mention)

→ Norman biau (inherited)

→ Norman bieau (inherited)

→ Picard bieu (inherited)

→ Walloon bea (derived)