blackamoor vs bootlip

blackamoor

noun
  • A stylized Negro. 

  • A blackamoor slave, a blackamoor servant; and hence any slave, servant, inferior, or child. 

bootlip

noun
  • A black person. 

  • A large lip, especially of a black person. 

  • The lip at the top end of the shaft of a boot. 

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