Del Rosario, in Spanish and Italian languages, and do Rosário in Portuguese language (English: of the rosary) is a surname that has as its etymology, the Latin preposition, "de" meaning "of the" and the Latin noun "rosarium", meaning "rosegarden"[1] or "garland of roses"[2] but in this case, takes the meaning of "rosary", the Roman Catholic devotion to the Virgin Mary.
The name's origins are in the Middle Ages, around the 12th century, and it is much associated with the cult of the Virgin Mary at the time when the rose became part of the holy aura, which surrounded anything to do with Mary, and Our Lady of the Rosary's Feast of the Holy Rosary.
This surname is common in Romance languages regions, and is also one of the most common surnames in the Philippines and other islands of the Spanish East Indies since the mid-19th century, where it is one of the most popular clans together with Cruz, Santos, Reyes, Gonzales, Bautista, García, Mendoza, Aquino, and others, because there are so many people that have this surname.
[3]