African-American vs kaffir

African-American

noun
  • A black American. 

  • Any black person. 

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. 

kaffir

noun
  • A black person. 

  • South African mining shares 

  • A member of the Nguni people of southern Africa, especially a Xhosa. 

  • A language spoken by the Nguni peoples of southern Africa, especially Xhosa. 

  • In Islamic contexts, a non-Muslim. 

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