Zaccarielli is almost unique and is almost certainly due to a transcription error, Zaccariello is typical of the Casertano, of Frignano, Aversa, Casal di Principe, San Marcellino and Macerata Campania, should derive from a form of endeating dialect of the term Dialectal Zaccaro (Little Boy, child), would be the equivalent of Bambiniello.
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