Portuguese-based creole languages used to distinguish locally born black people of African descent from those who had been brought from Africa as slaves. In time, however, this generic sense was lost, and the word "crioulo" or its derivatives (like "Creole" and its equivalents in other languages) became the name of several specific Upper Guinean communities and their languages: the Guinean people and their Kriol language, Cape Verdean people and their Kriolu language, all of which still today have very vigorous use, suppressing the importance of official standard Portuguese. The oldest Portuguese-based creole are the so-called "crioulos" of Upper Guinea, born around the Portuguese
Folk etymology "Hamburg" + "-er" ("thing connected with"), but understood as "ham" + "burger". The technical term "folk etymology" refers to a change in the form of a word caused by erroneous popular beliefs about its etymology. The English word is a translation of the German term "Volksetymologie", coined by Ernst Förstemann. Förstemann noted that in addition to scientific etymology based on careful study in philology, there exist scholarly but often unsystematic accounts, as well as popular accounts for the history of linguistic forms. Until academic linguists developed comparative philology and described the laws underlying sound changes, the derivation of words was