ancestry vs fatherness

ancestry

noun
  • Condition as to ancestors; ancestral lineage; hence, birth or honorable descent. 

  • A series of ancestors or progenitors; lineage, or those who compose the line of natural descent. 

fatherness

noun
  • The state or quality of being a father. 

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