apportion vs reunify

apportion

verb
  • To divide and distribute portions of a whole. 

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

reunify

verb
  • To unify again; to bring back together, or come back together, after separation. 

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