English
alacritous
From alacrity + -ous.
Formed from alacrity + -ous
Latin alacer ‘brisk’
Latin alacritās ‘alacrity, eagerness, persistence, zeal,…’
Middle English alacrite
English alacrity
Today it means
adj Brisk, speedy, with alacrity, quick and eager.
Language periods are conventional ranges, not dates for this word.
Etymograph / alacritous