burp vs disgorge

burp

verb
  • To emit a burp. 

  • To cause someone (such as a baby) to burp. 

  • To utter by burping 

  • To open (a container of fermenting substance) to allow the release of accumulated gas. 

noun
  • A belch. 

disgorge

verb
  • To vomit or spew, to discharge. 

  • To remove traces of yeast from sparkling wine by the méthode champenoise. 

  • To surrender (stolen goods or money, for example) unwillingly. 

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