eldership vs notability

eldership

noun
  • The position or office of being an elder. 

  • Seniority; the state or condition of being older. 

  • The smallest administrative division in Lithuania, equivalent to a ward. 

notability

noun
  • A notable or eminent person or thing. 

  • The quality or state of being notable or eminent. 

  • Locally eminent people; the bourgeoisie or upper middle class 

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