Today’s interpretation of the word deal stems from card playing a good deal is connected with potential cash rewards. Originally the word ‘deal’ referred to a length of timber cut for ship building. Timbers used for this purpose had to be perfect. Any defect rendered a plank a potential hazard. Planks that were free of knots, cracks or rotten areas were branded “good deals”. Hence a good deal means something of quality that will do the job properly rather like a decent hand in poker.