 The "-i-" (which is important in the phonetic evolution of *"Campaniacum") suggests that "Campanius" is a "gens" name.The modern forms differ according to the diverse phonetic evolutions of the local dialects.The initial /ka/ of "*Campaniacum" became /ʃa/ (written "Cha") in most of Gaul, both in langue d'oïl dialects and the northern langue d'oc dialects; but north of the Joret line, and most Langue d'oc dialects (southern one) /ka/ (written "Ca-") was preserved.