maim

from The American Heritage® Dictionary of the English Language, 5th Edition.

• transitive verb To injure, disable, or disfigure, usually by depriving of the use of a limb or other part of the body. synonym: mangle.
• transitive verb To make imperfect or defective; impair.

from The Century Dictionary.

• To disable by wounding or mutilation; deprive of, or of the use of, a necessary constituent part, as of the body, or, figuratively, of anything; in old law, to deprive of the use of a limb, so as to render a person less able to defend himself in fighting, or to annoy his adversary; mutilate. See mayhem.
• Synonyms Mangle, etc. See mutilate.
• noun A disabling wound or mutilation: the deprivation of a necessary part, or of the use of it, as a limb; a crippling, or that which cripples; in old law, deprivation by injury or removal of the use of some member serviceable in fight or for self-protection.
• noun See the quotation, and mayhem.
• noun A hurt or wound in general; an injury.
• noun A defect or blemish.

from the GNU version of the Collaborative International Dictionary of English.

• noun The privation of the use of a limb or member of the body, by which one is rendered less able to defend himself or to annoy his adversary.
• noun The privation of any necessary part; a crippling; mutilation; injury; deprivation of something essential. See Mayhem.
• transitive verb To deprive of the use of a limb, so as to render a person in fighting less able either to defend himself or to annoy his adversary.
• transitive verb To mutilate; to cripple; to injure; to disable; to impair.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb To wound seriously; to cause permanent loss of function of a limb or part of the body.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb injure or wound seriously and leave permanent disfiguration or mutilation