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.
Historical dictionary
The largest historical dictionary of German is the "Deutsches Wörterbuch" originally compiled by Jacob and Wilhelm Grimm and completed after their death in 1961. A second edition of the letters A–F is due for completion in 2017.