African-American vs nibba

African-American

noun
  • Any black person. 

  • A black American. 

adj
  • Of or pertaining to the culture of African-American people. 

  • An American who is of Sub-Saharan African ancestry. 

  • American and black. 

  • Of Black African descent. 

nibba

noun
  • Nigger or nigga. 

How often have the words African-American and nibba occurred in a corpus of books? (source: Google Ngram Viewer )