Breton kaouenn

← Proto-Brythonic *kuwann (inherited)

← Proto-Celtic *kuwannos (inherited)

← Old Breton [[couann]], [[couhann]] (inherited)

← Middle Welsh cuan (cognate)

← Middle Breton [[couhenn]], [[caouënn]] (inherited)

→ Breton kaouenned (suffix)

→ Cornish cowan (borrowed)

→ Old Armenian սագ (cognate)