intergender vs non-binary

intergender

noun
  • A person whose gender identity is midway between male and female. 

adj
  • intergender friendship, intergender wrestling 

  • Being midway between male and female. 

  • Taking place between people of opposite genders. 

non-binary

noun
  • A non-binary (genderqueer) person. 

  • Something which is not a binary; a computer file that is not readable text. 

adj
  • Having or pertaining to a gender identity not represented by the gender binary; not exclusively male or female; genderqueer. 

  • Not binary. 

How often have the words intergender and non-binary occurred in a corpus of books? (source: Google Ngram Viewer )