Old Irish brú

← Proto-Celtic *brusū (inherited)

← Proto-Celtic *mrogis (inherited)

← Old Irish (mention)

→ Irish brú (inherited)

→ Irish broinn (inherited)

→ Irish bruach (mention)

→ Irish brollach (mention)

→ Scottish Gaelic brù (inherited)

→ Manx brein (inherited)

→ Old Irish bruach (suffix)

→ Old Irish brúmar (suffix)