Original form of 春. Depicts the season when the sun (日) comes out and plants (艹, 屯) grow. 屯 also represents the sound.

Evolution

Oracle script

(~1250-1000 BC)

Bronze script

Late Spring and Autumn (~500 BC)

Seal script

Shuowen (~100 AD)

Clerical script

Eastern Han dynasty (25-220 AD)

Regular script

Modern

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