1 to erode

2 to corrode

1 to rust

2 to grow rusty

3 to corrode

4 oxidization

1 corrosion

2 to corrode (degrade chemically)

3 to rot

4 corruption

1 total eclipse

1 coastal erosion

2 marine abrasion

1 lit. to try to steal a chicken only to end up losing the rice used to lure it (idiom)

2 fig. to try to gain an advantage only to end up worse off

3 to go for wool and come back shorn

1 a blade will get rusty if it is not sharpened; a man will fall behind if he doesn't study (idiom)