from the GNU version of the Collaborative International Dictionary of English
- adj. a demon or evil spirit supposed to attend at call.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a spirit (usually in animal form) that acts as an assistant to a witch or wizard
Sorry, no etymologies found.
And his servants said to him, Behold, there is a woman that hath a familiar spirit at En-dor.