bai vs varlet

bai

noun
  • A people of the Yunnan province of China. 

  • A marshy meadow in sub-Saharan Africa. 

varlet

noun
  • Specifically, a youth acting as a knight's attendant at the beginning of his training for knighthood. 

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