プロヴァンス語
Both the "Compendion" and the "Cisterna" are written in Nissard dialect, but Fulconis only refers to his dialect as being Provençal dialect (a more generic word that includes Nissard's area). Whereas the "Compedion" is a more theoretical work, the "Cisterna" is very practically oriented to trade and gives many concrete examples that, today, represent for us an illustration of current life and trade relationships of his time.