Gaʹnem (g hard),
having incurred the displeasure of Caliph Haroun-al-Raschid, effected his escape by taking the place of a slave, who was carrying on his head dishes from his own table. (Arabian Nightsʹ Entertainments.)
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Entry taken from Dictionary of Phrase and Fable, edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.