to injure or damage (somebody, something, or a body part) severely
to deprive (somebody) of a limb or other essential body part
to damage or deface (e.g. a text)
The censors had mutilated the script
mutilation /-ʹlaysh(ə)n/ noun
mutilator noun
[Latin mutilatus, past part. of mutilare, from mutilus mutilated, maimed]