Overworking

from WordNet (r) 3.0 (2006)

overworking
    n 1: the act of working too much or too long; "he became ill
         from overwork" [syn: {overwork}, {overworking}]

from The Collaborative International Dictionary of English v.0.48

Overwork \O`ver*work"\, v. t. [imp. & p. p. {Overworked}or
   {Overwrought}; p. pr. & vb. n. {Overworking}.]
   1. To work beyond the strength; to cause to labor too much or
      too long; to tire excessively; as, to overwork a horse.
      [1913 Webster]

   2. To fill too full of work; to crowd with labor.
      [1913 Webster]

            My days with toil are overwrought.    --Longfellow.
      [1913 Webster]

   3. To decorate all over.
      [1913 Webster]