Related Clues:

• Disappear gradually
• Gradually deprive
• Withdraw
• Subject to ablation
• Lose underpinnings, e.g.
• Slowly lose ground
• Give up by degrees
• Gradually destroy, as confidence
• Lessen gradually
• Wash away, as soil
• Diminish gradually
• Become weatherworn
• Diminish, in a way
• Disaccustom
• Some shorelines do it