Related Clues:

• Begin to decay
• Wear down amid zero degrees
• Weaken gradually
• Become harder to see
• Lose vividness
• Become dimmer
• Slowly eat into
• Crumble to the sea, as shoreline
• Lose some ground
• Wear, as a rock?
• Make less craggy, say
• Lose vibrancy
• Craze ultimately sure to decline
• Melt away
• Weaken bit by bit