localize vs unify

localize

verb
  • To adapt a product for use in a particular country or region, typically by translating text into the language of that country and modifying currencies, date formats, etc. 

  • To determine where something takes place or is to be found. 

  • To adapt translated text to fit a local culture; to domesticate. 

  • To make local; to fix in, or assign to, a definite place. 

unify

verb
  • Cause to become one; make into a unit; consolidate; merge; combine. 

  • Become one. 

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