The aim of this study is to demonstrate what kind of changes took place in the Latin language in Aquitaine according to the inscriptions. All of the relevant inscriptions were examined up to this time, so we can form an opinion on the remarks made by József Herman, who was the first to deal with the development of the Latin of the Three Gauls in detail and who intended to write the history of this language. The categories of the computerized database are used for the analysis of the changes and some examples for the changes found are mentioned.