1. (verb) cut away in small pieces

• whittle away
• whittle down

2. (verb) diminish, as by friction

• wear off

3. (verb) become ground down or deteriorate

• eat at
• erode
• gnaw
• gnaw at

1. (verb) diminish, as by friction

• abrade
• abrase
• corrade
• rub down
• rub off

1. (verb) cut away in small pieces

• damage

2. (verb) diminish, as by friction

• remove
• take
• take away
• withdraw

3. (verb) become ground down or deteriorate

• crumble
• decay
• dilapidate

1. (verb) become ground down or deteriorate

• caustic
• corrosive
• erosive
• mordant
• vitriolic
• eating away
• eroding
• erosion
• wearing
• wearing away
• erosion