disquisition vs listening

disquisition

noun
  • A methodical inquiry or investigation. 

  • A lengthy, formal discourse that analyses or explains some topic; (loosely) a dissertation or treatise. 

listening

noun
  • Skill or ability of perceiving spoken language. 

  • Action of the verb listening 

  • An educational exercise involving listening 

adj
  • Of an action that is performed with caution and attention to sounds. 

  • Of something that is used in order to hear or to improve the ability to hear. 

  • Of something or someone that listens. 

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