The Collaborative International Dictionary of English v.0.48:

Mummery \Mum"mer*y\, n.; pl. Mummeries. [F. momerie, of Dutch
   or German origin. See Mumm.]
   1. Masking; frolic in disguise; buffoonery.
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            The mummery of foreign strollers.     --Fenton.
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   2. Farcical show; hypocritical disguise and parade or
      ceremonies. --Bacon.
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