geezer vs mzee

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. 

mzee

noun
  • An elder (old person). 

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