the.com/mutilation

The severe injury or removal of a part of the body, often leaving lasting harm.

means The act of cutting, damaging, or removing a part of something so severely that it's left incomplete or disfigured.

from From Latin mutilare, 'to cut off, maim,' from mutilus, meaning 'maimed' or 'cropped' — a root that likely referred originally to docked or hornless animals before it widened to cover any forcible lopping-off of a part, bodily or otherwise.

legal term
triggers tougher charges than simple assault
self vs harm
self-mutilation often coping, not suicide attempt
etymology
latin mutilus meant maimed or stunted
body ritual
many cultures call their mutilation beautification instead
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