Mezzetino or Mezzettino is a character from the commedia dell'arte, and is considered by Duchartre to be a variant on the stock character Brighella. His name means 'Half-Measure ' in Medieval Italian,
Mezzetino by Antoine Watteau
Possible portrait of Luigi Riccoboni in the costume of Mezzetin, detail from L'amour au Théâtre Italien, engraved by Charles-Nicolas Cochin after a painting by Antoine Watteau