I want to know the answer to the following question:
What West Central German dialect of Dutch contains the name of a U.S. state?
All the background I'm provided with is that "Until roughly the 16th century, speakers of all the varieties of the West Germanic languages from the mouth of the Rhine to the Alps had been accustomed to refer to their native speech as Dietsch, (Neder)duyts or some other cognate of theudisk.". Is that enough to answer the question?