Source : Webster's Revised Unabridged Dictionary (1913)

Curtail \Cur*tail"\ (k[u^]r*t[=a]l"), v. t. [imp. & p. p.
   {Curtailed} (-t[=a]ld"); p. pr. & vb. n. {Curtailing}.] [See
   {Curtal}.]
   To cut off the end or tail, or any part, of; to shorten; to
   abridge; to diminish; to reduce.

         I, that am curtailed of this fair proportion. --Shak.

         Our incomes have been curtailed; his salary has been
         doubled.                                 --Macaulay.