Welsh melyn

← Breton melen (cognate)

← Proto-Brythonic *melɨn (inherited)

← Proto-Celtic *meli (derived)

← Welsh mêl (cognate)

← Welsh mêl (mention)

← Cornish melyn (cognate)

← Old Welsh melin (inherited)

← Middle Welsh melyn (inherited)

→ English mullein (cognate)

→ Breton melen (cognate)

→ Welsh melyngoch (compound)

→ Welsh penfelyn (affix)

→ French molène (cognate)

→ Cornish melyn (cognate)

→ Dutch maal (mention)

→ Romansch melen (cognate)