abatement
abating
abridgment
allaying
allayment
alleviating
alleviation
analgesia
anesthesia
anesthetizing
appeasement
assuagement
assuaging
attenuation
attrition
blunting
calming
chastening
contraction
contractive
curtailment
cushioning
cut
cutting
dampening
damping
deadening
declining
decrease
decreasing
decrement
decrescence
decrescendo
decrescent
deduction
deflation
deliquescent
demulsion
depletion
depreciation
depression
derogation
detraction
diminishing
diminishment
diminuendo
diminution
dip
disparagement
alteration
change
modification
casualty
dwindling
dwindling away
shrinkage
shrinking
sinking
waning