"Tang Yun" (Tang Yun) uses classical qie. "Ji Yun" (Ji Yun) uses ji dian qie, pronounced the same as "jian" (jiǎn). "Shuowen Jiezi" (Shuowen Jiezi) explains it as black cracking on the skin. Also, "Guang Yun" (Guang Yun) and "Ji Yun" (Ji Yun) provide the pronunciation as hu dian qie, pronounced the same as "xian" (xiàn). "Guang Yun" (Guang Yun) explains it as the appearance of blackness. Also, "Ji Yun" (Ji Yun) provides the pronunciation as duo dian qie, pronounced the same as "dian" (diǎn). It means black.