flagellation vs spank

flagellation

noun
  • A beating consisting of lashes, notably as corporal punishment or mortification, such as a whipping or scourging. 

  • The formation by plants of flagella, or their arrangement 

spank

noun
  • An instance of spanking, separately or part of a multiple blows-beating; a smack, swat, or slap. 

  • A slapping sound, as produced by spanking. 

verb
  • To move rapidly. 

  • To beat, smack or slap a person's buttocks, with the bare hand or other object, as punishment, gesture, or form of sexual interaction. 

  • To hit very hard. 

  • To soundly defeat, to trounce. 

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