Surnames via Other Sources
Means "the one who had to", from the past participle of the verb must
Means "snows" in Spanish, from the title of the Virgin Mary Nuestra Señora de las Nieves
meaning "Our Lady of the Snows".
YU (1) Chinese
From Chinese 于 (yú)
meaning "in, on, at". According to legend, King Wu of Zhou bestowed the realm of Yu to his second son, who subsequently adopted this as his surname.