dudgeon

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

a scrap or morsel of food left at a meal.

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Collins

World English Dictionary

dudgeon¹ (ˈdʌdʒən)

—n
	anger or resentment (archaic, except in the phrase in high dudgeon)

[C16: of unknown origin]

dudgeon² (ˈdʌdʒən)

—n
1.	obsolete a wood used in making the handles of knives, daggers, etc
2.	archaic a dagger, knife, etc, with a dudgeon hilt

[C15: from Anglo-Norman digeon, of obscure origin]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline

Word Origin & History

dudgeon

1570s, duggin, of unknown origin. One suggestion is It. aduggiare "to overshadow," giving it the same sense development as umbrage. No clear connection to earlier dudgeon (late 14c.), a kind of wood used for knife handles, which is perhaps from a French word.

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Idioms & Phrases

dudgeon

see in high dudgeon.