Origins
The word 'satin' is a Silk Road word — a linguistic artifact of medieval long-distance trade that connects a Chinese port, Arab merchants, and European consumers in a single syllable.
The etymology is complex and not universally agreed upon, but the most widely accepted theory traces 'satin' to the Arabic name for the Chinese port of Quanzhou (泉州) in Fujian province. Arab traders knew the port as 'Zaytūn' (زيتون), and the adjective 'zaytūnī' meant 'from Zayton.' The fabric name passed from Arabic into Old French as 'satin,' and from French into English in the fourteenth century.
Quanzhou was one of the greatest ports in the medieval world. During the Song dynasty (960–1279) and especially the Yuan dynasty (1271–1368), it was the primary departure point for Chinese maritime trade with Southeast Asia, India, the Arab world, and East Africa. The Moroccan traveler Ibn Battuta, visiting in the 1340s, described it as one of the largest ports in the world, with enormous junks and a cosmopolitan population of Chinese, Arab, Persian, and Indian merchants. Marco Polo, who visited in the 1290s, called it (in his phonetic rendering) 'Zaiton' and said it was 'one of the two greatest commercial cities in the world.'
Development
Silk was Quanzhou's most valuable export. The Chinese had been producing silk for thousands of years — sericulture (silkworm cultivation) dates to at least the third millennium BCE — and by the medieval period, Chinese silk in various weaves reached markets from Japan to Egypt. The satin weave, characterized by long 'floats' of warp thread over multiple weft threads (creating the characteristic smoothness and sheen), was one of the most prized. Arab merchants who purchased this glossy silk at Quanzhou named it after the port.
The journey of the word from Chinese port to English wardrobe tracks the physical journey of the silk itself: from Quanzhou's harbor, across the South China Sea, through the Strait of Malacca, across the Indian Ocean to the ports of the Arabian Peninsula and the Persian Gulf, and from there by caravan or coastal shipping to the markets of Cairo, Damascus, and Constantinople, where Italian merchants — primarily Venetian and Genoese — purchased it for European consumption. French traders and nobility adopted the fabric and the word, and English borrowed it from French.
The Arabic name 'Zaytūn' for Quanzhou has a separate linguistic interest. 'Zaytūn' is the Arabic word for 'olive,' and some scholars believe the Arabs named the port after olive trees they saw nearby — or more likely, applied a familiar Arabic word to approximate the sound of the Chinese name. The true Chinese origin of 'Quanzhou' (泉 = spring, 州 = prefecture) has no connection to olives.
Word Formation
'Sateen' — a cotton fabric woven with the same float-heavy technique as silk satin, producing a similar (though less lustrous) sheen — is a nineteenth-century derivative of 'satin,' with an altered suffix modeled on 'velveteen' (an imitation of velvet). The word demonstrates how fabric terminology evolves: when a luxury material is imitated in a cheaper fiber, the name follows with a diminishing suffix.