geezer vs nigga

geezer

noun
  • Term of address for a male. 

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

  • Someone affable but morally dubious; a wide boy. 

nigga

noun
  • Any person, though chiefly male. 

  • A male as opposed to a female. 

  • A close and loyal friend. 

  • A black person (usually male), especially an African American. 

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