Origin unclear. Various explainations include (1) possibly derives from 入 (enter), with two strokes on the bottom to distinguish it from 入 (enter) or (2) a pictograph of a hut, which is thought to be the original form of 廬. Either way, the current meaning is a phoentic loan.

Evolution

Oracle script

(~1250-1000 BC)

Bronze script

Early Western Zhou (~1000 BC)

Seal script

Shuowen (~100 AD)

Clerical script

Eastern Han dynasty (25-220 AD)

Regular script

Modern

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