Derleth
Derleth is a surname of German origin. It is believed to be a topographic or locational surname, possibly deriving from the Old High German word "thor" meaning "gate" or "pass" and "lith" meaning "slope" or "descent," suggesting a location near a pass or gateway on a slope. Alternatively, it could be a variant of "Dörre," meaning "dry," referring to a dry area.
While not an extremely common surname, individuals bearing the name Derleth can be found in various countries,
One of the more prominent figures associated with the surname is August Derleth (1909-1971), an American author