dodo vs geezer

dodo

noun
  • A person or organisation which is very old or has very old-fashioned views or is not willing to change and adapt. 

  • Fried plantain. 

  • A large, flightless bird, †Raphus cucullatus, related to the pigeon, that is now extinct (since the 1600s) and was native to Mauritius. 

geezer

noun
  • An old person, usually a male, typically a cranky old man. 

  • Someone affable but morally dubious; a wide boy. 

  • Term of address for a male. 

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