nigger vs tautog

nigger

noun
  • A fish, the luderick (Girella tricuspidata). 

  • A person of any kind (particularly as a term of abuse). 

  • A friend, particularly a fellow black person, often used as an informal term of address. 

  • A member of any typically dark-skinned people (now especially in combinations like prairie nigger or sand nigger). 

  • A person of black African descent who acts in an unapproved manner (whether positive or negative). 

  • A black person; a person of black African descent. 

verb
  • To perform in blackface. 

  • To behave as a stereotypical black person. 

  • To treat as inferior. 

tautog

noun
  • A fish of the wrasse family found in salt water off of eastern North America from Nova Scotia to South Carolina (Tautoga onitis). 

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