Word of the Week – Alacrity

alacrity [uh-lak-ri-tee]  

noun

1. cheerful readiness, promptness, or willingness: 
            “We accepted the invitation with alacrity.”
2. liveliness; briskness.

 
Origin: 
late Middle English: from Latin alacritas, from alacer ‘brisk’

Related forms:

alacritous, adjective
unalacritous, adjective

Synonyms 
1. eagerness, keenness; fervor, zeal. 
2. sprightliness, agility.