An Etymological Dictionary of the German Language/Matz
Matz, m., ‘Mat; simpleton; pet name for tame birds’; ModHG. only; probably a pet name for Mathias, ‘Matthias,’ and Matthäus, ‘Matthew’; the intermediate form is Mattes.
Matz, m., ‘Mat; simpleton; pet name for tame birds’; ModHG. only; probably a pet name for Mathias, ‘Matthias,’ and Matthäus, ‘Matthew’; the intermediate form is Mattes.