Specific to the South Milanese and Lodigiano, one can infer an etymology similar to that of Vigo and Vighi. Additions provided by Giovanni Vezzelli Vigorelli is a typically Lombard surname. It is, most likely, a variant of the "Vigorito" strain, which already gave in the Middle Ages, proper names in person as vigorous, vigour and vigorous. It was formed originally, as a nickname given to person full of energy, from the Latin "vigor" coming in turn from the verb "vigere" (invigorate, take force): The Endeating form could have a caricaturial nuance.
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