Abstract
We will study some lexical formation processes in Guadeloupean Creole to illustrate the hypothesis of the differential evolution of French according to its environment. On the one hand, we will present the creation of morphological patterns from words inherited from French, whose structure has been reinterpreted according to the linguistic specificities of Guadeloupean. On the other hand, we'll mention the creation of formation patterns unknown to the lexifier language, but well represented in other languages. Finally, we'll look at the rarity of morphological processes used to create the specialized vocabularies that developedin Frenchfrom the 18th centuryonwards, and explain them in terms of the sociolinguistic conditions under which Guadeloupean Creole evolved.