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 removing elements thought to be affixes. For example, Italian "pronuncia" ("pronunciation; accent") is derived from the verb "pronunciare" ("to pronounce; to utter") and English "edit" derives from "editor". Some cases of back-formation are based on folk etymology. In linguistic change caused by folk etymology, the form of a word changes so that it better matches its popular rationalisation. Typically this happens either to unanalyzable foreign words or to compounds where the word underlying one part of the compound becomes obsolete. There are many examples of words borrowed from foreign languages, and subsequently changed by folk etymology. The spelling of many