D defs.my
Entry 1 sense Webster, 1913

Alacrity

/ə-lă'crĭ-tē/ · A·lac·ri·ty · IPA /əˈlækɹɨti/
01 n. A cheerful readiness, willingness, or promptitude; joyous activity; briskness; sprightliness; as, the soldiers advanced with alacrity to me…
  1. 1.
    A cheerful readiness, willingness, or promptitude; joyous activity; briskness; sprightliness; as, the soldiers advanced with alacrity to meet the enemy.
    “I have not that alacrity of spirit, Nor cheer of mind that I was wont to have.” Shak.