Old Irish bruth

← Proto-Celtic *brutus (inherited)

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

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

→ English brew (cognate)

→ Welsh brwdfrydedd (cognate)

→ Welsh amrwd (cognate)

→ Welsh brwd (cognate)

→ Irish bruth (inherited)

→ Old Irish bruthmar (suffix)