satin (n.) Look up satin at Dictionary.com
mid-14c., from Old French satin (14c.), perhaps from Arabic (atlas) zaytuni, literally "(satin) from Zaitun," a Chinese city, perhaps modern Tsinkiang in Fukien province, southern China, which was a port in the Middle Ages. The form of the word perhaps influenced in French by Latin seta "silk." OED finds the Arabic connection etymologically untenable and takes the French word straight from Latin.