DictionaryRoot: argot
Old French
argot
cock’s spur
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noun
ergot
UR-gut/ˈɝɡʌt/
A fungus that forms toxic masses on cereal grasses.
Etymology
Old French argot meant a cock’s spur. The fungus was named for the spur-like shape it forms on diseased grain; the origin of the spur word itself is unknown.