geriatric vs longbeard

geriatric

noun
  • An old person. 

adj
  • Relating to geriatrics. 

  • Relating to the elderly. 

  • Elderly, old. 

longbeard

noun
  • Synonym of greybeard (“an old man”) 

  • A man with a long beard. 

  • Synonym of greybeard (“experienced long-time member of a group”) 

  • Synonym of greybeard (“a bellarmine”) 

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