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.
Etymological Dictionary of the German Language
The Etymological Dictionary of the German Language is a reference book for the history of the German language, and was one of the first books of its kind ever written. Originally written in 1883 by Friedrich Kluge, it is still actively maintained and considered a standard work among the German etymological dictionaries. The most recent publication was released in 2011 in print, eBook and as an Android app.