Donaudampfschiffahrtselektrizitätenhauptbetriebswerkbauunterbeamtengesellschaft
Donaudampfschiffahrtselektrizitätenhauptbetriebswerkbauunterbeamtengesellschaft is a compound word that serves as an example of the virtually unlimited compounding of nouns that is possible in many Germanic languages. According to the 1996 "Guinness Book of World Records", it is the longest word published in the German language.
Abrogans
Abrogans, also German Abrogans or Codex Abrogans (St Gall, Stiftsbibliothek, Cod. 911), is a Middle Latin–Old High German glossary, whose preserved copy in the Abbey Library of St Gall is regarded as the oldest preserved book in the German language.