Ribbisi, absolutely rare, is due to errors of transcription, Ribisi, very unusual, is specific to Palma di Montechiaro (AG), but has significant presences also in Palermo. Integrations provided by Franco Cominato a hypothesis that seems sustained among other things by the contemporary presence in Palma di Montechiaro (AG) of the surname Rìbbisi together with Rìbisi, would think likely to derive from Ribes (plant), Sicilian rìbbisi.
Buy a heraldic document with your coat of arms
Verba Volant, Scripta Manent