"dolmetschen" is one of the German translation for "to translate".
It is, as already mentioned derived from the Turkish word dilmaç bzw. tilmaç. (another translation of "to translate" is "übersetzen").

Johann/Johannes/Hans/Hannes are all common forms of originally the same name. All are in use today (similar to Jake/Jacob or Steve/Steven/Stephen in English which are forms of the same name)

The Turks came as far as Wien (Vienna) in 1529 and 1683 and kept the town under siege but failed to conquer the town.
Austria is one of the German-speaking countries. So any words the Turks left there on retreat might have found their way into German language ...


Andreas a/k/a MudGuard, from Germany