Pictograph of a weapon handle, now written as 柲. 八 was later added as a decorative mark. Similar to 戈 but without the blade. The current meaning is a phonetic loan.
Character Evolution
Oracle Bone~1250-1000 BCOracle Bone~1250-1000 BCBronzeLate Western Zhou~800 BCSealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealShuowen~100 ADClericalQin221-206 BCClericalQin221-206 BCClericalWestern Han202 BC-9 ADClericalWestern Han202 BC-9 ADClericalWestern Han202 BC-9 ADClericalEastern Han25-220 ADClericalEastern Han25-220 ADRegularModern