Alacrity is cheerful readiness to act at once. With alacrity, accepted with alacrity, surprising alacrity.
It nearly always appears as with alacrity, and it adds willingness to speed, which is what separates it from haste. It is often faintly amused, since somebody who agrees with alacrity was rather keen.
1nounalacrityCheerful readiness to act at once.
“The children ran to the table with alacrity as soon as dinner was called.”
alacrity is a readiness.
Latin alacritas comes from alacer, brisk or lively.
Latin
alacritās
Middle English
alacrite
English, today
alacrity
Built from
Mid-15th century; from Middle English alacrite, from Latin alacritās, from alacer (“brisk”) + -itās (“-ity”).
Etymology from Wiktionary, CC BY-SA