Zi Collection, Upper Volume, Page 34, Entry 06 Pronounced zhu (falling tone) Explained in the "Guangyun" as "zhi shu cut," and in the "Jiyun" and "Yunhui" as "zhu shu cut," with the same pronunciation as "zhu." The "Yupian" explains it as leather trousers. Also explained in the "Jiyun" as the part of barbarian clothing that covers the knees.