Welsh meddyg

← Breton mezeg (cognate)

← Proto-Brythonic *meðɨg (inherited)

← Cornish medhek (cognate)

← Latin medicus (derived)

← Middle Irish midach (cognate)

← Middle Welsh meðyc (inherited)

→ English meth (mention)

→ English metheglin (mention)

→ Welsh meddyges (suffix)

→ Welsh meddygon (affix)

→ Welsh parafeddyg (affix)

→ Welsh llawfeddyg (compound)

→ Welsh meddygfa (affix)