Definition of 「璂」:
1. Ancient jade ornament at the seams of leather items.
古代皮件缝合处的玉饰。
2. Phonetic-ideographic character. Composed of the element for "jade" and its sound. Original meaning: a type of beautiful jade; later refers to the jade ornament in leather items.
形声。从玉,其声。本义:美玉的一种,后又指皮弁中的玉饰。
3. The term "璂琪" refers to a type of jade.
璂琪,玉属也。
4. Reference: "In the records of the Mu Tianzi, five-colored jade 璂 is used."
——《穆天子传》会五采玉璂。
5. Reference: "In the Zhou Li, it describes the Bing Shi (Ceremony Master) that includes adornments made of five colors of jade."
——《周礼·弁师》。
6. Note: The term "綦" refers to the stitching of leather items. Each stitch is adorned with twelve pieces of five-colored jade as decoration. It is said that the emperor wore a leather cap with twelve stitches on the front and back, each stitch adorned with twelve pieces of five-colored jade.
注:“綦结也。皮弁之缝。每贯结五采玉十二以为饰。谓之綦。皇帝皮弁,用乌纱帽之,前后各十二缝,每缝各缀五彩处十二,以为饰。——明代《诸司职掌》。