pumpernickel

 
Pronunciation: /ˈpʊmpəˌnɪk(ə)l, ˈpʌm-/

noun

[mass noun]
  • dark, dense German bread made from coarsely ground wholemeal rye.

Origin:

mid 18th century: transferred use of German Pumpernickel 'lout, bumpkin', of unknown ultimate origin