Charlotte M. Yonge,
History of Christian names
(1884)
“ The daughters of the gens were called by the feminine of its name, and sometimes took that of the gens of their husband, but this was not always the custom.Besides these large tribes, there were lesser ones of families. If an ancestor had acquired an additional appellation, whether honourable or ludicrous, it passed to all his male descendants, thus distinguishing them from the rest of their gens, and was called the cognomen. For instance, after Marcus Manlius had saved the capitol, Capitolinus would be the cognomen not merely of himself but of his posterity. ”
