S: (v) devolve, deteriorate, drop, degenerate (grow worse) "Her condition deteriorated"; "Conditions in the slums degenerated"; "The discussion devolved into a shouting match"
S: (v) tire, pall, weary, fatigue, jade (lose interest or become bored with something or somebody) "I'm so tired of your mother and her complaints about my food"
S: (v) languish, fade (become feeble) "The prisoner has been languishing for years in the dungeon"
S: (v) waste, rot (become physically weaker) "Political prisoners are wasting away in many prisons all over the world"