Aboriginal vs geriatric

Aboriginal

noun
  • An Aboriginal inhabitant of Australia. 

name
  • Any of the native languages spoken by Australian aborigines. 

adj
  • Of or pertaining to Australian Aboriginal peoples, Aborigines, or their language. 

geriatric

noun
  • An old person. 

adj
  • Relating to geriatrics. 

  • Relating to the elderly. 

  • Elderly, old. 

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