1. Ó Mealláin: This is the Gaelic origin of the name, and it is derived from the word "meallán," which means "hillock" or "small hill." The name Ó Mealláin was originally a patronymic surname, indicating descent from a person named Meallán.
2. De Molina: This is the Spanish origin of the name, and it is derived from the word "molina," which means "mill." The name De Molina originally referred to someone who lived near or worked in a mill.
3. Molines: This is the French origin of the name, and it is derived from the word "moulin," which also means "mill." The name Molines originally referred to someone who lived near or worked in a mill.
Over time, these various forms of the name Mullins were adopted by English speakers and became established as a surname in England and Ireland. Today, the name Mullins is found in many parts of the world, particularly in English-speaking countries such as the United States, Canada, Australia, and New Zealand.