𡨄 is a component form of 塞. Depicts two hands (廾) stuffing various objects (工) into an enclosed space (宀). Not related to 寒, despite being same in shape.

Evolution

Oracle script

(~1250-1000 BC)

Bronze script

Early Spring and Autumn (~700 BC)

Seal script

Shuowen (~100 AD)

Regular script

Modern

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