—n.
1 deception; trickery.
2 a typical verbal formula used in conjuring.
—v. (-pocussed, -pocussing; US -pocused, -pocusing)
1 intr. (often foll. by with) play tricks.
2 tr. play tricks on, deceive.
Etymology: 17th-c. sham L
Useful english dictionary. 2012.