establish vs map out

establish

verb
  • To make stable or firm; to confirm. 

  • To form; to found; to institute; to set up in business. 

  • To prove and cause to be accepted as true; to establish a fact; to demonstrate. 

  • To appoint or adopt, as officers, laws, regulations, guidelines, etc.; to enact; to ordain. 

map out

verb
  • To make explicit; to explain in detail. 

  • To create a map of an area. 

  • To organise a plan; to analyze a situation; to figure out a problem. 

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