rú
be like
Original meaning:
obey
Depicts a woman (女) obeying spoken (口) orders. Based on the original meaning "obey". The meaning later shifted to "be similar" and "like". 女 also serves as a sound component.
Evolution

Oracle script
(~1250-1000 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
Sources