elderdom vs potency

elderdom

noun
  • Authority; dominion. 

  • Preeminence; superiority. 

  • The role or influence of an elder or elders. 

  • The authority, rule, or office of an elder. 

  • The state of being an elder, or of being older; elderhood. 

potency

noun
  • Power, authority. 

  • Concentration; strength 

  • Sexual virility: the ability to become erect or achieve orgasm. 

  • Potentiality, ability, capacity. 

  • The ability or capacity to perform something 

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