 The 16th-century change of name was also a change of meaning, for "lang" means “long” in German.In the area of Langweiler's and Homberg's current municipal areas once lay a village named Käsweiler, whose location is, however, no longer known with any certainty.It is generally considered to be part of Homberg today, and is treated in more detail in the corresponding section of the article about that municipality.