Originally depicted two hands (廾) holding an object (丨) to patch up a hole in a boat (舟), representing the meaning "seal a crack". The current meaning is a phonetic loan.
Due to historical stylistic changes, this component is less similar to 廾 than it was in ancient scripts.
Character Evolution
Oracle Bone~1250-1000 BCOracle Bone~1250-1000 BCOracle Bone~1250-1000 BCBronzeEarly Western Zhou~1000 BCBronzeEarly Western Zhou~1000 BCBronzeEarly Western Zhou~1000 BCBronzeEarly Western Zhou~1000 BCBronzeMid Western Zhou~900 BCBronzeMid Western Zhou~900 BCBronzeMid Western Zhou~900 BCBronzeLate Western Zhou~800 BCBronzeLate Western Zhou~800 BCBronzeEarly Spring and Autumn~700 BCBronzeEarly Spring and Autumn~700 BCBronzeEarly Spring and Autumn~700 BCBronzeLate Spring and Autumn~500 BCBronzeLate Spring and Autumn~500 BCBronzeEarly Warring States~400 BCBronzeLate Warring States~250 BCSealWarring States (Chu)475-221 BCSealShuowen~100 ADClericalWestern Han202 BC-9 ADClericalWestern Han202 BC-9 ADClericalEastern Han25-220 ADClericalWestern Jin266-316 ADRegularModern