A language referred to as "Indo-European" was the origin of the German language. In fact, most languages spoken in Europe and Asia come from Indo-European.
The German word for "German" is "Deutsch". Pronounced doitch. "Deutsch" as a noun is neuter, thus the definite articles are "das" (nominative and accusative), "des" (genitive), "dem" (dative). When...
There are no languages that are derived from German. To answer your question, all of them. Actually English is more like German than anything else. It is a really messed up language for sure but I...