Dwimmer

"It is ill dealing with such a foe: he is a wizard both cunning and dwimmer-crafty, having many guises."

“The Lych and his dark dwimmer spell have you resisted—even defeated, defeated for the present. But you have not destroyed. They shall return in time, I fear.”

The soldiers peered into the deep dark shaft In which lay the monk with tonsorshorn A victim of the sorcerous lady's dwimmer craft