Welsh brenin

← Proto-Brythonic *brɨɣėntin (inherited)

← Proto-Celtic *brigantīnos (inherited)

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

← Middle Welsh brenhin (inherited)

→ Old English beorn (mention)

→ Welsh brenhines (suffix)

→ Welsh rhi (link)

→ Welsh brenhiniaeth (affix)

→ Welsh brenhinol (affix)

→ Ancient Greek Βρέννος (cognate)