bigender vs gendered

bigender

adj
  • Having two genders simultaneously: both male and female. 

  • Having a tendency to move between feminine and masculine gender-typed behaviour depending on context. 

gendered

adj
  • Divided by gender. 

  • Having grammatical gender. 

  • Pertaining to gender or having attributes due to gender. 

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