ETYMOLOGY
from Latin maleficium (malefice, a wicked enchantment, sorcery) + -ious
EXAMPLE
“…Or again, the foresaid change of a sound into a morbid body proceeds from the breath, or from the depraved spirit and aspect of the eyes, permeating, dissipating or infecting, or any other way changing the very tender substance of the Child. At which time, if any thing superstitious or maleficious come from the wickedness of the Devil, the Assistence of Holy Church being first desired, we must proceed to such Remedies as may dissipate, dissolve and weaken the breath, wind, or foul and contagious spirit …”
From: A Guide to the Practical Physician shewing, from the most approved authors, both ancient and modern, the truest and safest way of curing all diseases, internal and external, whether by medicine, surgery, or diet
By Theophile Bonet, Translated from Latin, 1684
Lexicophilia 