flagellate vs rawhide

flagellate

verb
  • To whip or scourge. 

  • Of a spermatozoon, to move its tail back and forth. 

adj
  • Resembling a whip. 

  • Having flagella. 

noun
  • Any organism that has flagella. 

rawhide

verb
  • To beat with a rawhide whip. 

  • To clear (a pump) of sediment by starting and stopping it repeatedly. 

noun
  • Untanned hide. 

  • A whip made from twisted untanned leather. 

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