Rhymes (Tang Yun) use "suo" and "jiu" as cutting characters, and Rhymes (Jiyun) use "shu" and "jiu" as cutting characters, pronounced "sou". "Yuzhi" records: "jie", "jiu", is the name of an insect. Also called "qi", "jiu". "Boyao" says: "jie", "jiu", is "jie". In addition, "Youyang Zazu" records: ancient "qi", "jiu", "duan", "hu", "ta", "ying", "gu", can harm people by damaging their shadows.