| reach depths(verb, expression, decline, weaken, lessen) |
| sap(verb, decline, weaken, lessen, degenerate) |
| shrivel(verb, decline, weaken, lessen, degenerate) |
| sicken(verb, decline, weaken, lessen, degenerate) |
| sink(verb, decline, weaken, lessen, degenerate) |
| slump(verb, decline, weaken, lessen, degenerate) |
| turn(verb, decline, weaken, lessen, degenerate) |
| wane(verb, decline, weaken, lessen, degenerate) |
| waste away(verb, expression, phrasal verb, decline, weaken) |
| wear away(verb, expression, phrasal verb, decline, weaken) |
| weaken(verb, decline, degenerate, deteriorate, worsen) |
| break down(verb, expression, phrasal verb, decay) |
| fall apart(verb, expression, phrasal verb, decay) |
| go moldy(expression, decay, decompose) |
| grow moldy(expression, decompose, molder) |
| taint(verb, decay, decompose) |