A prayer to avert or remove some evil or disaster.

Roget 616: dissuasion, dehortation^†, expostulation, remonstrance; deprecation etc. 766.    discouragement, damper, wet blanket; disillusionment, disenchantment.    cohibition etc. (restraint) 751^†; curb etc. (means of restraint) 752; check etc. (hindrance) 706.    reluctance etc. (unwillingness) 603; contraindication.    ... show more

Roget 766: deprecation, expostulation; intercession, mediation, protest, remonstrance.   

The act of expressing disapproval (especially of yourself).

synonym: denigration.