Libian

Qin-era seal script (c. 200 BC)
Han-era clerical script (c. 200 AD)
Comparison of historical forms for 'horse'. The clerical form more closely resembles modern regular script.
Libian
Traditional Chinese隸變
Simplified Chinese隶变
Literal meaningclerical change
Transcriptions
Standard Mandarin
Hanyu Pinyinlìbiàn
Yue: Cantonese
Jyutpingdai6 bin3

Libian refers to the gradual, systematic simplification of Chinese character forms during the 2nd century BC, by which the Chinese writing system transitioned from the seal script character forms to clerical script characters during the early Han dynasty period, through the process of making omissions, additions, or transmutations of the graphical form of a character to make it easier to write. Libian was one of two conversion processes towards the new clerical script character forms, with the other being liding, which involved the regularisation and linearisation of character shapes.