Nemetz is a surname of German and Slavic origin that comes from a variation on the Slavic word Němec, meaning "mute" (in this context, ethnic German non-Slavic speakers).
References
Nemetz Wikipedia(Text) CC BY-SA
Nemetz is a surname of German and Slavic origin that comes from a variation on the Slavic word Němec, meaning "mute" (in this context, ethnic German non-Slavic speakers).