centralize vs convey

centralize

verb
  • To move things physically towards the centre; to consolidate or concentrate 

  • To move power to a single, central authority 

convey

verb
  • To move (something) from one place to another. 

  • To communicate; to make known; to portray. 

  • To transfer legal rights (to). 

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