fatherness vs genealogy

fatherness

noun
  • The state or quality of being a father. 

genealogy

noun
  • The descent of a person, family, or group from an ancestor or ancestors; lineage or pedigree. 

  • The study, and formal recording of such descents. 

  • A record or table of such descent; a family tree. 

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