ETYMOLOGY
from Latin ardelio, from ardere (to burn, be eager or zealous)
EXAMPLE
“…we run, ride, take indefatigable pains, all up early, down late, striving to get that which we had better be without, (Ardelion’s busybodies as we are) it were much fitter for us to be quiet, sit still, and take our ease…”
From: The Anatomy of Melancholy
By Robert Burton, 1624
Lexicophilia 