barmecide Meaning, Definition & Usage

Bar"me*cide noun
Etymology
A prince of the Barmecide family, who, as related in the "Arabian Nights' Tales", pretended to set before the hungry Shacabac food, on which the latter pretended to feast.
Definitions
  1. One who proffers some illusory advantage or benefit. Also used as an adj.: Barmecidal. "A Barmecide feast." Dickens.

Webster 1913