catalog vs collocate

catalog

noun
  • US and Canada spelling of catalogue 

collocate

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

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

  • To arrange or occur side by side. 

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