kiasi vs nigga

kiasi

noun
  • A kiasi person. 

adj
  • Unwilling to take a chance for fear that something bad or unfavourable will happen; cowardly. 

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 kiasi and nigga occurred in a corpus of books? (source: Google Ngram Viewer )