merino

Merino is a Spanish word whose origin is debated. It may come from the Berber Marinid dynasty (the Banu Marin who ruled Morocco in the 13th–15th centuries and may have introduced the breed to Iberia), or from the medieval Spanish term merino (a traveling judge or inspector of livestock). The word names both the sheep breed and the wool it produces. Merino sheep produce the finest, softest wool fibers of any sheep breed — as thin as 11.5 microns, compared to 25–40 microns for ordinary wool.

Spain controlled the merino breed as a state monopoly for centuries. The Mesta, the royal sheep owners' guild, managed transhumance routes across Castile. Merino sheep traveled hundreds of kilometers twice a year between summer and winter pastures. Exporting merino sheep from Spain was a capital offense — punishable by death. The wool was exported; the sheep were not. Spain's merino monopoly was one of the foundations of its medieval and early modern economy.

The monopoly broke in the 18th century. King Charles III of Spain gave merino sheep as diplomatic gifts to European courts. Louis XVI received merinos at Rambouillet in 1786. The British smuggled merinos to Australia in 1797. Australia's sheep industry — which now produces the majority of the world's merino wool — began with those stolen and gifted Spanish sheep. The death penalty for export became a gift economy within two decades.

The word merino in modern retail has two meanings: the sheep breed (and its wool) and a marketing term for fine-quality wool regardless of breed. 'Merino wool' on a label should mean wool from merino sheep, but regulation varies. The word trades on the reputation that Spain spent centuries building and Australia now benefits from.