Depicts a weapon (戈) slashing an eye (臣). In ancient China, captured prisoners were blinded with weapons making them into slaves. 爿 was later added as a sound component. Based on the original meaning, "slave; servant". The current meaning "good" is a phonetic loan.

Evolution

Oracle script

(~1250-1000 BC)

Bronze script

Mid Western Zhou (~900 BC)

Seal script

Shuowen (~100 AD)

Clerical script

Western Jin dynasty (266-316 AD)

Regular script

Modern

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