Also Wierding Module.
Wierding Ways are arcane teachings that seem like witchcraft at first, but are merely secrets unknown to outsiders.
A Wierding Module is a weapon the user controls by sounds they make with their mouth. With precise voice control, a person can cause the weapon to resonate and shatter even hard stone. Purely fictional weapon from the original DUNE movie. Not featured in the book.
"Teach us your wierding way of battle, and you shall have my protection."
"Dr. Yueh, put the wierding module on him and set the range to two meters."