EN
In the Slovak language, adjectives are derived from the basic form of the French geographical names. The short suffix - 'sky' or the longer one - 'ský' is added to the derivational base. The selection of the applied suffix on the base of so-called rhythmical law is problematic. We propose to use longer suffix -'ský'. The derivation of the adjectives from the several types of the French geographical names is connected with the modification of the final morphemes. For some types of the French geographical names, the final morphemes are omitted.