Ori is typically Emilian and northern Tuscany, Oro has strains scattered here and there throughout Italy, even the islands, they should derive from the Latin name Aurius or from the medieval name Orio, both derived from the Latin term aureus (golden), but they can also come from from nicknames originated from the trade of goldsmith perhaps carried out by the founders.
Gold is a surname that would seem specific of the Vicenza area, but which also presents strains in the Cosenza area, in the Macerata and in central-southern Sardinia, Orofino is widespread especially in the south, in the Neapolitan, in the Potentino, in the Bari, in Cagliari and in Sicily in Palermo, Enna and Catanese, should derive from the medieval name Oro or Orofino attributed to particularly welcome sons, who were thus considered as pure gold or gold by their parents.
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