Märkischer
Märkischer is an adjective and demonym in the German language, derived from Mark, the historic march or border territory. Historically, it referred to the Mark Brandenburg, the eastern frontier of the Holy Roman Empire, and by extension to the people, culture, and institutions of that region. In medieval and early modern texts the term Märkisch describes things associated with the Mark, including language, traditions, and governance.
In contemporary usage the term appears mainly in toponyms and administrative names that preserve a link to
In summary, Märkischer denotes origin or association with the historic Mark or Mark Brandenburg and survives