Fernicola is specific to the people of Salerno, Buccino in particular and San Gregorio Magno and Contursi Terme, Sarnicola is also characteristic of the Salerno area of Agropoli and Vallo della lucania, Sernicola has a stock in Rome and Magliano Sabina in the Rieti area and one in the Salerno area. Cava de 'Tirreni and Salerno and in Naples, all these surnames should derive from progenitors, people of respect, so as to be called Ser, named Nicola, the first form should derive from an incorrect reading of the initial S written with archaic spelling, very similar to f, the second from a simple error of interpretation of the second letter of the surname, although, in some cases, it may be an error of transcription of the third letter from n to r, in this case the derivation would be from one of the many toponyms San Nicola.
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