annunciation vs forthspeaking

annunciation

noun

  • The act of annunciating. 

forthspeaking

noun

  • The act of speaking forth or declaring; declaration. 

  • Prophecy. 

  • Revelation. 

adj

  • Speaking forth; declaring; prophesying. 

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