factum

from The Collaborative International Dictionary of English v.0.48
Factum \Fac"tum\ (f[a^]k"t[u^]m), n.; pl. {Facta}. [L. See
   {Fact}.]
   1. (Law) A man's own act and deed; particularly:
      (a) (Civil Law) Anything stated and made certain.
      (b) (Testamentary Law) The due execution of a will,
          including everything necessary to its validity.
          [1913 Webster]

   2. (Mach.) The product. See {Facient}, 2.
      [1913 Webster]
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
FACTUM. A deed. a man's own act and deed.
     2. When a man denies by his plea that he made a deed on which he is 
sued, be pleads non est factum. (q.v.) Vide Deed; Fait. 
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
FACTUM, French law. A memoir which contains summarily the fact on which a 
contest has happened, the means on which a party founds his pretensions, 
with the refutation of the means of the adverse party. Vide Brief. 
    

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