German orthography
Compound words, including nouns, are written together, e.g. "Haustür" (Haus+Tür; house door), "Tischlampe" (Tisch+Lampe; table lamp), "Kaltwasserhahn" (Kalt+Wasser+Hahn; cold water tap/faucet). This can lead to long words: the longest word in regular use, "Rechtsschutzversicherungsgesellschaften" ("legal protection insurance companies"), consists of 39 letters; while the longest German word ever published ("Donaudampfschiffahrtselektrizitätenhauptbetriebswerkbauunterbeamtengesellschaft", "Association for subordinate officials of the head office management of the Danube steamboat electrical services") has 79 letters.
Essen
In German-speaking countries, the name of the city Essen often causes confusion as to its origins, because it is commonly known as the German infinitive of the verb for "eating" (written as lowercase "essen"), and/or the German noun for food (which is always capitalized as "Essen", adding to the confusion). Although scholars still dispute the interpretation of the name, there remain a few noteworthy interpretations. The oldest known form of the city's name is "Astnide", which changed to Essen by way of forms such as Astnidum, Assinde, Essendia and Esnede. The name Astnide may have referred either to a region where many ash trees were found or to a region in the East (of the Frankish Empire). The Old High German word for fireplace, Esse, is also commonly mentioned due to the industrial history of the city, but is highly unlikely since the old forms of the city name originate from times before industrialization.