Checcacci is specific to the Arezzo area, to Bibbiena, Pratovecchio, Arezzo and Castel San Niccolò, to Florence, Grosseto and Livorno, Checchetti, very rare. it is of Tuscan emilian origin, Checchini would seem to be from Veneto, has a stock in Verona and Bussolengo (VR) and one in Padua, but it is present in a significant way also in Rome, Checchino, which seems unique, is due to a transcription error of the previous , Checco is specific to Motta San Giovanni (RC), Checcone is probably a mistake in recording by Checconi who has a stock in Cortona (AR) between Arezzo and Perugia and one in Rome, Checcucci, probably originally from Florence, has a large stock in Florence and San Casciano In Val Di Pesa, with significant presences also in the Siena area and in Foligno (PG), all derive, directly or through hypocoristic, augmentative or derogatory, from a family variation of the apheresis of the as Francis and his hypocorisms, Ludovico Antonio Muratori also speaks of this use in his Dissertation of the Names and Nicknames of the Ancients: "... Nor do we do otherwise in our times, because we say Checco instead of Francis; Goro instead of Gregorio; Pippo instead of Filippo; Meo instead of Bartolomeo, Ghitta instead of Margherita ... ".
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