sentences:  However, there are also names dating from an early time which seem to be monothematic, consisting only of a single element.These are sometimes explained as hypocorisms, short forms of originally dithematic names, but in many cases the etymology of the supposed original name cannot be recovered.The oldest known Germanic names date to the Roman Empire period, such as those of "Arminius" and his wife "Thusnelda" in the 1st century, and in greater frequency, especially Gothic names, in the late Roman Empire, in the 4th to 5th centuries (the Germanic Heroic Age).