Each week The Sun's John McIntyre presents a relatively obscure but evocative word with which you may not be familiar, another brick to add to the wall of your vocabulary. This week's word:
The necro in necromancy (pronounced NEK-ruh-man-see) you'll recognize from necrophilia, from the Greek nekros, "corpse." The mancy comes from the Greek manteia, "divination." We see –mancy in many compounds: ailuromancy, divination from the behavior of cats; bibliomancy, divination from passages in a book, particularly the Bible, chosen at random; oneiromancy, divination through the interpretation of dreams.
Necromancy is, strictly speaking, communing with the spirits of the dead to predict the future, more broadly "black magic" or "sorcery."
Of all the –mancies, this one has a bad reputation.
Example: From H.L. Mencken's review of The Social Objectives of School English by Charles S. Pendleton (March 1925): "I present Dr. Pendleton's laborious work as overwhelming proof of a thesis that I have maintained for years, perhaps sometimes with undue heat: that pedagogy in the United States is fast descending to the estate of a childish necromancy, and that the worst idiots, even among the pedagogues, are the teachers of English."