languish (v.)
- abate
- ablate
- bate
- break
- collapse
- consume
- corrode
- crumble
- decline
- decrease
- deliquesce
- desiccate
- despair
- despond
- deteriorate
- diminish
- disintegrate
- dive
- droop
- drop
- dwindle
- ebb
- erode
- fade
- fail
- faint
- fall
- flag
- lessen
- peak
- pine
- plummet
- plunge
- sag
- sear
- shrink
- shrivel
- sink
- subside
- wane
- waste
- weaken
- wear
- wilt
- wither
- yield