Creole language
A creole language, or simply creole, is a stable form of contact language that develops from the process of different languages simplifying and mixing into a new form (often a pidgin), and then that form expanding and elaborating into a full-fledged language with native speakers, all within a fairly brief period. While the concept is similar to that of a mixed or hybrid language, creoles are often characterized more narrowly by a tendency to systematize their inherited grammar (e.g., by eliminating irregularities).