wú
negative
Original meaning:
dance
Pictograph of a person dancing, with ox tails or bird feathers hanging from his arms, to pray for rain. Original form of 舞 (dance). The current meaning is a phonetic loan.
Evolution

Oracle script
(~1250-1000 BC)
Bronze script
Late Shang dynasty (~1100 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
Component uses
Iconic component in 1 character (1 verified)
Sources
季旭昇《說文新證》p.495