yì
to command
Original form of 役. Depicts a person (亻) being controlled by a weapon (殳). Based on the original meaning "to command".
Components
Evolution

Oracle script
(~1250-1000 BC)
Bronze script
Mid Western Zhou (~900 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
Modern