celerity

[ suh-ler-i-tee ]
/ səˈlɛr ɪ ti /

noun

swiftness; speed.

Origin of celerity

1480–90; earlier celerite < Middle French < Latin celeritās, equivalent to celer swift + -itās -ity
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British Dictionary definitions for celerity

celerity

/ (sɪˈlɛrɪtɪ) /

noun

rapidity; swiftness; speed

Word Origin for celerity

C15: from Old French celerite, from Latin celeritās, from celer swift
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012