| Rots |
| Wears |
| Weakens |
| Gullies |
| Abrades |
| Molders |
| Wears off |
| Cuts into |
| Eats into |
| Eats away |
| Wears away |
| Chips away |
| Wears down |
| Undermines |
| Diminishes. |
| Wastes away |
| Breaks down |
| Grinds down |
| Washes away |
| Deteriorates |
| Loses ground |
| Wears slowly |
| Eats away at |
| Whittles away |
| Crumbles away |
| Whittles down |
| Disintegrates |
| Chips away at |
| Causes wear to |
| Washes away at |
| Causes detritus |
| Breaks the bank |
| Creates ravines |
| Slowly vanishes |
| Vanishes slowly |
| Decays gradually |
| Slowly disappears |
| Eats at the beach |
| Falls away slowly |
| Reduces gradually |
| Reduces over time |
| Eats into, as rock |
| Eats away, as soil |
| Undergoes nivation |
| Slowly washes away |
| Destroys gradually |
| Decreases, in a way |
| Destroys by degrees |
| Blows away, possibly |
| Disintegrates slowly |
| Disappears gradually |
| Slowly disintegrates |
| Gradually wears away |
| Wears away gradually |
| Diminishes by degrees |
| Subjects to detrition |
| Diminishes bit by bit |
| Undermines, as support |
| Eats away at, as support |
| Destroys by disintegration |
| Creates naturally, as a gorge |
| Wears away gradually, as shoreline |
| Slowly disintegrates, like a shoreline |