2 definitions
A Power-word (n.) is a patient's name for her abstruse, learned-sounding coinages, used to inflate the personality against doubt and hostility and so serving as a defensive, exorcistic formula.
Power-word (n.) are the nebulous terms of secret doctrines through which they seek power; Jung brought such metaphysical claims into the daylight of psychology, since one can grasp nothing metaphysically, only psychologically.