intimation vs notification

intimation

noun
  • Announcement; declaration. 

  • The thing intimated. 

  • The act of intimating. 

  • A hint; an obscure or indirect suggestion or notice; a remote or ambiguous reference. 

notification

noun
  • The act of notifying. 

  • A text message on a cell phone. 

  • A specific piece of information that serves to notify. 

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