Eating away and Profligateness

Eating away noun - Geology) the mechanical process of wearing or grinding something down (as by particles washing over it.

Profligateness and eating away are semantically related. In some cases you can use "Profligateness" instead a noun phrase "Eating away".

Eating away and profligateness are semantically related. Sometimes you can use "Eating away" instead a noun "Profligateness".