Pronounced zhi (third tone) and zhi (fourth tone) in the "Tang Yun" (Tang Rhymes) and "Ji Yun" (Collected Rhymes) respectively, same pronunciation as "zhi" (to throw). "Shuowen Jiezi" (Explaining and Analyzing Characters) explains it as chaff from wheat. Ten jin of wheat can yield three dou of chaff. "Guang Ya" (Broad Glosses) states: 䵂, is chaff. Also, pronounced tu (second tone) and ting (fourth tone) in the "Guang Yun" (Guang Rhymes) and "Ji Yun" respectively, same pronunciation as "di" (reed). "Guang Yun" explains it as chaff (wheat bran). Also, pronounced zhi (third tone) and zhi (fourth tone) in the "Ji Yun", same pronunciation as "zhai" (to pick) and "zhi" (to step). The meanings are the same. Originally written as .