Archaic or dialectal term for the croup (disease characterized by a barking cough) or the rump/hindquarters of an animal; variant of group or croup.
From Middle Low German or Old Norse origins, related to group and croup. The exact lineage is unclear, but it likely represents a variant pronunciation or spelling of croup.
Crup is a ghost of a word—it survives mainly in historical texts and rural dialects, like a fossil showing how pronunciation and spelling varied before standardization!
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