Celerity

[Sarah]

Rapidity of motion; quickness; swiftness.Time, with all its celerity, moves slowly to him whose wholeemployment is to watch its flight. Johnson.

[Sarah]

Speed, haste, rapidity or quickness. Gamers often have celeritous reflexes and athletes run celeritously.

[Julian]

Swiftness of movement.

[psycho]

a rate that is rapid

[VikaRip]

The speed of individual waves (as opposed to the speed of groups of waves).

[GlendynaSlese]

Celerity is the quality or state of being swift; rapidity or speed.

[Williamorect]

sel-er′it-i, n. quickness: rapidity of motion. [Fr.,—L. celeritas—celer, quick.]