12 letters · 24 points in Scrabble
noun bread made of coarse rye flour
originFrom Westphalian German Pumpernickel, from Pumper (“fart”) (or a related form, such as pumpern) and Nickel (“rascal”) (from the male name Nikolaus (“Nicholas”)), possibly originating as an insult for a person or for the bread itself by outsiders. A false folk etymology claims that this comes from the phrase pain pour Nicole ("bread for Nicole"), referring to Napoleon disliking the taste so much…
Etymology from Wiktionary, CC BY-SA 3.0