Wei Collection, Middle Volume
Radical: Silk (mì)
Kangxi Strokes: 12
Page 922, Entry 11
According to the Broad Rhymes (Guangyun) and the Collected Rhymes (Jiyun), it is pronounced ci.
According to the Explaining Graphs and Analyzing Characters (Shuowen), it refers to thread made by twisting hemp fibers.
According to the Rites of Zhou (Zhouli), Earth Officials, Market Officials: In charge of collecting the tax on market cloth. Annotation: Market cloth refers to the tax on shop stalls.
Also, according to the Collected Rhymes (Jiyun), it is pronounced zi, and also pronounced zi. The meaning is the same.
Correction: In the Rites of Zhou (Zhouli), Earth Officials, Market Officials, the original text citing the collection of cloth and market cloth was erroneous. It has been corrected to refer to the collection of market cloth taxes.