Gaulish berula

← Gaulish beru (mention)

← Proto-Celtic *beru (inherited)

← Proto-Celtic *bẹrŭro- (mention)

← Proto-Celtic *brutus (mention)

← Proto-Indo-European *bʰrewh₁- (inherited)

→ French berle (derived)

→ Galician berro (cognate)

→ Galician brizo (cognate)

→ Latin berula (borrowed)