flagellation vs lathering

flagellation

noun
  • The formation by plants of flagella, or their arrangement 

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

lathering

noun
  • The act of lathering; a covering with lather. 

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