noun Etymology: German, from pumpern to break wind + Nickel goblin; from its reputed indigestibility Date: 1756 a dark coarse sourdough bread made of unbolted rye flour
PUMPERNICKEL
Meaning of PUMPERNICKEL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012