The Collaborative International Dictionary of English v.0.48:

Sorcery \Sor"cer*y\, n.; pl. Sorceries. [OE. sorcerie, OF.
   sorcerie, fr. OF. & F. sorcier a sorcerer, LL. sortiarius,
   fr. L. sors, sortis, a lot, decision by lot, fate, destiny.
   See Sort, n.]
   Divination by the assistance, or supposed assistance, of evil
   spirits, or the power of commanding evil spirits; magic;
   necromancy; witchcraft; enchantment.
   [1913 Webster]

         Adder's wisdom I have learned,
         To fence my ear against thy sorceries.   --Milton.
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