abate
ablate
bate
be eaten away
become suicidal
break
cave in
collapse
come apart
come unstuck
conk out
consume
consume away
corrode
crumble
decline
decrease
deliquesce
desiccate
despair
despond
deteriorate
die away
diminish
disintegrate
dive
droop
drop
drop off
dry up
dwindle
dwine
ebb
erode
fade
fade away
fail
faint
fall
fall away
fall off
fizzle out
flag
give out
give way
go downhill
languishment
degenerate
devolve
weaken
languished
languishes
languishing
languishness
languid
languor
languorous
anguish