apportion vs set aside

apportion

verb
  • To divide and distribute portions of a whole. 

  • Specifically, to do so in a fair and equitable manner; to allocate proportionally. 

set aside

verb
  • To separate and reserve something for a specific purpose. 

  • To disagree with something and reject or overturn it. 

  • To declare something invalid or null and void. 

  • To leave out of account; to omit or neglect. 

How often have the words apportion and set aside occurred in a corpus of books? (source: Google Ngram Viewer )