筭
suàn

an ancient device for working with numbers

Character Evolution

Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Three Kingdoms (Cao Wei) 222-280 AD

Historical Pronunciations

Old Chinese
Zhengzhangsloːns

說文解字

長六寸。計歷數者。从竹从弄。言常弄乃不誤也。

Sources

Readings & variants
Unicode
Historical pronunciations
Zhengzhang Shangfang
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)