[1] : The Collaborative International Dictionary of English v.0.48

voluntary \vol"untary\, a. l. voluntarius, fr. voluntas will,
   choice, from the root of velle to will, p. pr. volens; akin
   to e. will: cf. f. volontaire, of. also voluntaire. see
   will, v. t., and cf. benevolent, volition,
   volunteer.
   1. proceeding from the will; produced in or by an act of
      choice.
      1913 webster

            that sin or guilt pertains exclusively to voluntary
            action is the true principle of orthodoxy. --n. w.
                                                  taylor.
      1913 webster

   2. unconstrained by the interference of another; unimpelled
      by the influence of another; not prompted or persuaded by
      another; done of his or its own accord; spontaneous;
      acting of one's self, or of itself; free.
      1913 webster

            our voluntary service he requires.    --milton.
      1913 webster

            she fell to lust a voluntary prey.    --pope.
      1913 webster

   3. done by design or intention; intentional; purposed;
      intended; not accidental; as, if a man kills another by
      lopping a tree, it is not voluntary manslaughter.
      1913 webster

   4. physiol. of or pertaining to the will; subject to, or
      regulated by, the will; as, the voluntary motions of an
      animal, such as the movements of the leg or arm in
      distinction from involuntary motions, such as the
      movements of the heart; the voluntary muscle fibers,
      which are the agents in voluntary motion.
      1913 webster

   5. endowed with the power of willing; as, man is a voluntary
      agent.
      1913 webster

            god did not work as a necessary, but a voluntary,
            agent, intending beforehand, and decreeing with
            himself, that which did outwardly proceed from him.
                                                  --hooker.
      1913 webster

   6. law free; without compulsion; according to the will,
      consent, or agreement, of a party; without consideration;
      gratuitous; without valuable consideration.
      1913 webster

   7. eccl. of or pertaining to voluntaryism; as, a voluntary
      church, in distinction from an established or state
      church.
      1913 webster

   voluntary affidavit or voluntary oath law, an affidavit
      or oath made in an extrajudicial matter.

   voluntary conveyance law, a conveyance without valuable
      consideration.

   voluntary escape law, the escape of a prisoner by the
      express consent of the sheriff.

   voluntary jurisdiction. eng. eccl. law see contentious
      jurisdiction, under contentious.

   voluntary waste. law see waste, n., 4.
      1913 webster

   syn: see spontaneous.
        1913 webster
see also:
will benevolent volition volunteer voluntary affidavit voluntary oath 
voluntary conveyance voluntary escape voluntary jurisdiction contentious jurisdiction contentious 
voluntary waste waste spontaneous 

[2] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

voluntary escape. the giving to a prisoner voluntarily, any liberty not 
authorized by law. 5 mass. 310; 2 chipm. 11; 3 harr.  john. 559; 2 harr.  
gill. 106; 2 bouv. inst. n. 2332. 

Escape >> E Words
Escape, definition of term: Escape
escape_pag1.html

Voluntary >> V Words
Voluntary, definition of term: Voluntary
voluntary_pag1.html

Escape Velocity >> E Words
Escape Velocity, definition of term: Escape Velocity
escape+velocity_pag1.html