mis•deal
  Pronunciation: (mis-dēl'), [key]    — v., n. -dealt, -deal•ing, 
  
 
—v.t., v.i. - to deal wrongly or incorrectly, esp. to deal the wrong number at cards.  
 
—n. - a deal in which the wrong number of cards have been distributed or in which the cards were dealt in the wrong order or manner, necessitating a new deal and the cancellation of any points made on the hand, sometimes with a penalty to the dealer.  
 
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.