1) (an instance of) reducing a period of imprisonment; a lessening or weakening (of pain, disease, efforts etc) (remission)
2) to destroy (a government, religion etc) by weakening people's trust, confidence, belief (subvert)
a period of gradual and continued loss of importance, strength
lessening
the flowing out of the tide; a low mood or state
regression; decline
the part of a story or drama (after the climax) when the leading character suffers (before the final catastrophe or resolution)
dropping