缁 · Ouyang Tong
Zī (1st tone; traditional 緇). The Shuowen Jiezi defines it as 「帛黑色。从糸甾聲」 — ‘silk that is black’. Duan Yucai’s commentary adds the cosmology and the craft: 「黑者，北方色也，火所熏之色也」 and quotes 《考工記》「三入爲纁，五入爲緅，七入爲緇」 — three dips give 纁 (the reddish br $9.00 – Purchase Checkout Added to cart