eructation vs ventosity

eructation

noun
  • An erumpent blast of gas, wind, or other matter ejected from the depths of the earth. 

  • The act of belching, of expelling gas from the stomach through the mouth. 

ventosity

noun
  • The quality or state of being ventose; windiness. 

  • vainglory; pride. 

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