bullwhip vs nagaika

bullwhip

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

verb
  • To beat with a bullwhip. 

nagaika

noun
  • A short, thick braided whip with a round cross-section, used by the Cossacks. 

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