[-Axel-]

.......

You won't get anything from a Dictionary -_- Sorcery can be the use of any form of magic, and in a Dictionary its considered "Black magic"

Let me get the article.

"In this fictional context, Necromancers (those who perform necromancy) some are considered evil, and are said to have sold their soul to a demon or the devil himself, or worship evil gods, or have been tainted by their evil practices. As such, in most contexts where Necromancers exist, one or more church is devoted to the slaying of Necromancers and their undead minions. Although some of them are no evil or good, just Necromancers, and uses the necromancy for his own. Necromancy comes from the greek word of (necros = dead, and Mancy = learning). "
As you see, the word itself means Dead learning. (Well, learning about Death)

Tell me if you want more.