"disagreeable howling or screeching," like that of a cat in heat, late 14c., caterwrawen, perhaps from Low German katerwaulen "cry like a cat," or formed in English from cater, from Middle Dutch cater "tomcat" + Middle English waul "to yowl," apparently from Old English *wrag, *wrah "angry," of uncertain origin but somehow imitative. Related: Caterwauled; caterwauling. As a noun from 1708.
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