Zi Collection, Upper Volume, Page 34, Entry 04 Pronounced chun (tone 1) Also written as 輅 (lù). From "Jiyun" and "Yunhui," a sound like "lun" (束伦切), pronounced the same as "chun" (椿). "Shuowen Jiezi" explains it as a carriage restraint (yúe). The "Zhou Li" records that a duke rode in a "xia yu" (夏䡅). Another explanation refers to the carriage used for lowering a coffin. "Xu Yue" explains "yue yu" (约䡅) as being carved and decorated with restraint. Regarding the currently circulated "Zhou Li - Chun Guan - Jin Che" (周礼·春官·巾车), the commentary states: "Xia yu" (夏篆) refers to colorful patterns painted on the carriage hub. "Shuowen Jiezi" quotes it as "xia yu" (夏䡅), with a different pronunciation but the same meaning. Ancient characters can sometimes be used interchangeably. "Guangyun" records "yu" (䡅) as the same as "chun" (輴). For detailed explanations, refer to the commentary on the character "chun" (輴) later.