Zanut, extremely rare, is from the province of Pordenone and Treviso, Zanutti is quite rare and is specific to Udinese, Zanutto, much more common, is widespread in Udinese and Venetian, derive from dialectal changes of the name John, Zuàn in Friulan dialect joined to the diminutive dialect in UT would therefore amount to Giovannino.
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