atter

noun
at·​ter | \ ˈatər\
plural -s

Definition of atter

chiefly Scottish
: corrupt matter from a sore

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History and Etymology for atter

Middle English, from Old English ātor; akin to Old High German eitar poison, Old Saxon ettar, Old Norse eitr, Old High German eiz pustule, boil, Greek oidos swelling, tumor, Old Slavic jadŭ poison, and perhaps to Sanskrit indra- strong, and perhaps to Old English āte oat

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to corrupt or become corrupted

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