extensity vs hearing

extensity

noun
  • The degree to which something is extensive 

  • The state of being extensive or of having extension 

hearing

adj
  • Able to hear, as opposed to deaf. 

noun
  • The sense used to perceive sound. 

  • A proceeding at which discussions are heard. 

  • The act by which something is heard. 

  • A legal procedure done before a judge, without a jury, as with an evidentiary hearing. 

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