Relate to: Accelerate = Ac (celerity) = which means speed up something or doing something rapidly.
celerity sounds like celebrity, and a celebrity like salman khan who always drive his car in maximum speed and do the accidents.
celer(ity) ~ cereal>>> if you eat cereals, you can be agile and quick
celerity -> celebrity get famous at rapid rate and speed.
CELEBRITY dances with CELERITY