She invariably had every child in the establishment at her heels, open-mouthed with admiration and wonder,--not excepting Miss Eva, who appeared to be fascinated by her wild diablerie, as a dove is sometimes charmed by a glittering serpent.
-- Harriet Beecher Stowe, Uncle Tom's Cabin
His worst excesses of unfeeling diablerie belong to his early days.
-- Robertson Davies, "The Making of a 'Dublin Smartie", New York Times, October 30, 1988
Origin:
Diablerie comes from the French, from diable, devil, from Latin diabolus, from Greek diabolos, "slanderer," from diaballein, "to slander," literally "to throw across," from dia-, "across" + ballein, "to throw."