Detail
Type D. - Arnum is a Dorf (Village).
Kr Hadersleben - The Kreis for Arnum is Hadersleben. A Kreis is a government district (similar to a U.S. county).
See Hoirup II - A See notation means the entry is dependent on another entry. In this case, Arnum is dependent on Hoirup II, which should be consulted for additional information.
There are no places that reference Arnum 2) Schlesw.