Nira is unique, Niri, absolutely rare, probably from central Italy, Niro is specific to the area that includes the provinces of Foggia and Campobasso. intehtazioni provided by Stefano Ferrazzi Nira, unique, is found only in the Milanese, Niri, very rare, is typical mostly of central Italy, with major stocks in the Roman, Terni and Chieti areas, Niro, much more common than the previous ones, has a main nucleus between the Campobassano and the Foggia, but minor stocks are also found in the Neapolitan, in the frusinate, in the Caserta and between the north and north north of the country, all these surnames derive from the medieval name Niro, which, like Nigro and Negro, was born as a variant of the name Nero, already in use by the ancient Romans (to indicate either somatic characteristics, such as dark complexion or hair color, or perhaps also used in a metaphorical sense); in some cases, however, it is not excluded a direct origin from the adjective black, to be understood in the same sense as the name of person. As far as the surnames in question are concerned, therefore, it is a question of the surnames or personal names of the progenitors or nicknames attributed to them.
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