The definition of celerity is a very fast motion.(noun)
An example of celerity is movement of one hundred miles per hour.
See celerity in Webster's New World College Dictionary
Origin: Fr célérité < L celeritas < celer, swift: see hold
See celerity in American Heritage Dictionary 4
Origin: French célérité
Origin: , from Old French
Origin: , from Latin celeritās
Origin: , from celer, swift.
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