chà, chā, chāi
to differ
Original meaning:
rub between fingers
Depicts grain (來) being rolled between the fingers in the left hand (左). Based on the original meaning "rub between fingers", now written as 搓. The meaning later shifted to "uneven" and "error".
Evolution

Bronze script
Late Spring and Autumn (~500 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
Component uses
Meaning component in 1 character (0 verified)
Sources