bullwhip vs scourge

bullwhip

noun
  • A whip made from plaited leather, often with a knotted end, for use with livestock. 

verb
  • To beat with a bullwhip. 

scourge

noun
  • A whip, often of leather and often multi-tailed. 

  • A source of persistent trouble such as pestilence that causes pain and suffering or widespread destruction. 

  • A means to inflict such pain or destruction. 

verb
  • To strike with a scourge; to flog. 

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