effuse vs leak out

effuse

verb
  • To leak out through a small hole. 

  • To emit; to give off. 

  • To pour out like a stream or freely; to cause to exude; to shed. 

  • To gush; to be excitedly talkative and enthusiastic about something. 

adj
  • Poured out freely; profuse. 

  • Having the lips, or edges, of the aperture abruptly spreading, as in certain shells. 

  • Spreading loosely, especially on one side. 

  • Disposed to pour out freely; prodigal. 

leak out

verb
  • To spill or pour out, because of a leak. 

  • To be revealed (especially, of information intended to be kept secret). 

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