the·ur·gy 
(thēûr-jē)
(thēûr-jē)n. pl. the·ur·gies
1. Divine or supernatural intervention in human affairs.
2. Magic performed with the supposed aid of beneficent spirits, as formerly practiced by the Neoplatonists.
[Late Latin theūrgia, from Greek theourgiā, sacramental rite, mystery : theo-, theo- + -ourgiā, -urgy.]
the·urgic, the·urgi·cal adj.
the·urgi·cal·ly adv.
theur·gist n.