codify vs collocate

codify

verb
  • To collect and arrange in a systematic form. 

  • To reduce to a code, to arrange into a code. 

collocate

verb
  • To arrange or occur side by side. 

  • (said of certain words) To be often used together, form a collocation; for example strong collocates with tea. 

noun
  • A component word of a collocation; a word that collocates with another. 

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