One of the gains to be reckoned from the study of nomenclature in the sepulchral inscriptions of the early empire is the gradual abandonment of attempts to distinguish between slave and freeborn on the basis of personal name or cognomen alone, especially when this is of Latin derivation. Nevertheless, one still finds personal cognomina in undated inscriptions adduced as sole evidence for the origin or status of individuals below senatorial rank. Thus in a standard work on freedmen in the early (...) empire, recently reprinted, names such as Agilis, Amandus, Auctus, Communis, Donatus, Faustus, Felix, etc., are said to be commonly servile, but others such as Aquila, Bassus, Capito, Cams, Celer, Crescens, etc., are taken as ingenuous. The criteria used in making such a distinction are subjective and arbitrary and the statistics based on them are largely valueless. It is the purpose of this note to consider briefly on this question the evidence of the personal nomenclature of the Imperial slaves and freedmen. In this group, the Familia Caesaris, no problem of status arises, and the fact that the majority of their inscriptions can be dated, at least approximately, makes it possible to trace the chronological development of the use of cognomina ingenua by one important group of servile origin from the first to the early third century A.D. Moreover, such a development is useful evidence for change in the social structure of the early empire. (shrink)