The authors agree that Asmundo is a Sicilian surname of Scandinavian origin, which arrived on the island with the Norman presence.

E. Rossoni derives it from the Norman name Asmund, Latinised as Asmundus, documented in the work Gesta Danorum by the chronicler Saxo Grammaticus.

V. Blunda goes deeper into the Germanic origin of the name and explains it as a compound of ansi (a variant of ans, divinity) and munda (protection, guardianship), meaning "divine protection" or "the one who has the shelter of the gods". He presents it as the Norse Germanic equivalent of Anselmo, present in medieval Icelandic and Norwegian onomastics. He also recalls that its diffusion in Sicily is explained by the arrival of the Normans, who originated from Scandinavian peoples settled in France in the 10th century.