genarian vs geriatric

genarian

noun
  • An elderly person, especially one over the age of 60. 

adj
  • Concerning rules or principles as opposed to acts. 

geriatric

noun
  • An old person. 

adj
  • Relating to geriatrics. 

  • Relating to the elderly. 

  • Elderly, old. 

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