horse mackerel vs nigger

horse mackerel

noun
  • Alectis indica (Indian threadfish) 

  • Megalaspis cordyla (torpedo scad) 

  • Atule (certain scads) 

  • Carangoides spp. (island jacks) 

  • Sarda australis (Australian bonito) 

  • Trachurus spp. (jack mackerels). 

  • Gnathanodon speciosus (golden trevally) 

  • Naucrates ductor (pilot fish) 

  • Sarda sarda (Atlantic bonito) 

  • Caranx spp. (certain trevallies) 

  • Selar crumenophthalmus (bigeye scad) 

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. 

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