黒くろ八はち丈じょうくろはちじょうMeanings1nounthick black silk from Hachijo IslandA traditional Japanese silk fabric known for its deep black color and durability, produced on Hachijō-jima.黒くろ八はち丈じょうは、八はち丈じょう島じまで織おられる伝でん統とう的てきな黒くろい絹