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marron
n.
5Fr < It marrone, chestnut6 a large, sweet European chestnut, often used in confectionery
The US had beautiful huge chestnuts tree with delicious edible nuts, until about a
hundred years ago some stupid anal orifice thouight he could improve them by crossing them with an Asiatic chestnut. He introduced a fungus that killed millions
of beautiful trees, and is still able to prevent their growing more than a few inches tall.

Known ever after as The Marron Moron