Source : Webster's Revised Unabridged Dictionary (1913)

Deforcement \De*force"ment\, n. [OF.] (Law)
   (a) A keeping out by force or wrong; a wrongful withholding,
       as of lands or tenements, to which another has a right.
   (b) (Scots Law) Resistance to an officer in the execution of
       law. --Burrill.