Very rare is specific to Feltre (BL), it should derive from the medieval name Scarioto of which we have an example in an act of sale of 1512 where we read of such a Scarioto de Parma, but it is also possible that derives from nicknames as you can be seen from an act of 1631 to Grosio (SO) who mentions among the advisers of the community of Grosio "... Martino Sala said Scariot... ".
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