Cabigioso, practically unique, is from Sassari, Cabigiosu is specific to Sassari and Ploaghe in the Sassari area, they should derive from a nickname originated from the Sardinian term cabigiu (nipple), meaning that the progenitor probably had very protruding capessoles.
Buy a heraldic document with your coat of arms
Verba Volant, Scripta Manent