Diederich

Diederich is a German given name derived from the Old High German elements theud, meaning people or nation, and rihhi, meaning power or ruler, giving the overall sense of ruler of the people. It is an archaic form that reflects the older Germanic spelling conventions before the name settled into its more familiar modern shape. The name belongs to the same family as Dietrich, Dirk, Thierry, and Theodoric, all of which descend from the same Proto-Germanic roots and spread widely across medieval Europe.