Here's why it's tricky:
* Potential origins: While the exact meaning of "Kurtz" as a surname is uncertain, it might be related to:
* "kurz" meaning "short" or "brief" in German. This could refer to someone with a short stature, a short name, or living near a short road.
* "Kurt" meaning "brave" or "strong". This could be a nickname turned surname.
* Not a dictionary word: You won't find "Kurtz" in a German dictionary as a standalone word. It primarily functions as a last name.
If you're interested in the surname's possible origins, you might need to research family history or consult with a genealogist.