Magic

Magic was a term used by the Hobbits to describe processes and abilities of objects which could not be explained out of their limited lore and knowledge.

"For this is what your folk would call magic. I believe; though I do not understand clearly what they mean; and they seem also to use the same word of the deceits of the Enemy"

― The Fellowship of the Ring The Mirror of Galadriel

The effects which could be described magical, were of different natures.