Source : Webster's Revised Unabridged Dictionary (1913)

Assuagement \As*suage"ment\, n. [OF. assouagement, asuagement.]
   Mitigation; abatement.

Source : WordNet®

assuagement
     n : the feeling that comes when something burdensome is removed
         or reduced; "as he heard the news he was suddenly flooded
         with relief" [syn: {relief}, {alleviation}]