assimilate vs take in

assimilate

verb
  • To be incorporated or absorbed into something. 

  • To bring to a likeness or to conformity; to cause a resemblance between. 

  • To incorporate nutrients into the body, especially after digestion. 

  • To incorporate or absorb (knowledge) into the mind. 

  • To liken, compare to something similar. 

  • To become similar. 

  • To absorb (a person or people) into a community or culture. 

noun
  • Something that is or has been assimilated. 

take in

verb
  • To absorb or comprehend. 

  • To allow a person or an animal to live in one's home. 

  • To receive (goods) into one's home for the purpose of processing for a fee. 

  • To enjoy or appreciate. 

  • To deceive; to hoodwink. 

  • To tighten (a belaying rope). (Also take up.) 

  • To shorten (a garment) or make it smaller. 

  • To attend a showing of. 

  • To reef. 

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