bluehair vs longbeard

bluehair

noun
  • An elderly person, especially a woman or one viewed as senile, old-fashioned, or out-of-touch. 

  • A young or naive supporter of social-justice causes. 

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 bluehair and longbeard occurred in a corpus of books? (source: Google Ngram Viewer )