Phonosemantic compound. 貝 represents the meaning and 塞 represents the sound. Based on the original meaning "reward". The meaning later shifted to "compete".
SealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealWarring States (Chu)475-221 BCSealShuowen~100 ADRegularModern