Welsh cyffylog

← Breton kefeleg (cognate)

← Proto-Brythonic *kėfɨlọg (inherited)

← Welsh ceffyl (suffix)

← Welsh -og (suffix)

← Welsh gafr y corsydd (link)

← Cornish kevelek (cognate)

← Middle Welsh cyffylog (inherited)

→ Breton kefeleg (cognate)

→ Welsh cyffyloca (affix)

→ Cornish kevelek (cognate)