Why is it called merino?

The term 'merino' originates from either the Arabic word 'Merini,' referring to a Northwest African sheep-farming family or tribe whose sheep were introduced to Spain for improving local breeds, or from the medieval Latin 'maiorinus,' possibly influenced by 'maior' meaning 'greater,' denoting the size of the animal or the Spanish derivative 'merino' for a ranch overseer or judicial officer. Since the early 19th century, the word has been used to describe the Merino sheep and its wool.