The most important nucleus in western Lombardy, but could also be identified as a strain in Venezia Giulia, could derive from a nickname linked to the archaic dialect word Milanese passon (stake stuck in the ground to support for example a house). additions provided by Giovanni Vezzelli Passoni: in medieval times it was the custom, after a peace between two enemy families, to place the first name Paxius on a newborn, as an auspicious signal for the future. Passoni is the augmentative plural form. For M. Francipane PASSONI instead derives from the verb 'to pass' in the sense of crossing, which forms many other surnames including PASSATORE, PASSANTE, PASSAGGI, PASSA, PASSI etc.
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Verba Volant, Scripta Manent