Source : Webster's Revised Unabridged Dictionary (1913)

Weariness \Wea"ri*ness\, n.
   The quality or state of being weary or tried; lassitude;
   exhaustion of strength; fatigue.

         With weariness and wine oppressed.       --Dryden.

         A man would die, though he were neither valiant nor
         miserable, only upon a weariness to do the same thing
         so oft over and over.                    --Bacon.

Source : WordNet®

weariness
     n : temporary loss of strength and energy resulting from hard
         physical or mental work; "he was hospitalized for extreme
         fatigue"; "growing fatigue was apparent from the decline
         in the execution of their athletic skills"; "weariness
         overcame her after twelve hours and she fell asleep"
         [syn: {fatigue}, {tiredness}]