interrelate vs organize

interrelate

verb
  • To form relationships between multiple things. 

organize

verb
  • To constitute in parts, each having a special function, act, office, or relation; to systematize. 

  • To arrange in working order. 

  • To furnish with organs; to give an organic structure to; to endow with capacity for the functions of life 

  • To sing in parts. 

  • To band together into a group or union that can bargain and act collectively; to unionize. 

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