Etymology
From Middle English hamelen, from Old English hamelian (“to hamstring, mutilate”), from Proto-Germanic *hamalōną, *hamlōną (“to mutilate”), from Proto-Indo-European *kem- (“mutilated, hornless”). Cognate with German hammeln, hämmeln (“to geld”), Icelandic hamla (“to mutilate, maim”), Dutch hamel (“wether”).
Definitions & examples from Wiktionary (CC BY-SA 3.0).