laundry vs lustration

laundry

noun
  • A laundering; a washing. 

  • A penalty flag. 

  • That which needs to be, is being, or has been laundered. 

  • A place or room where laundering is done - including, by extension, other forms of laundering than clothes washing. 

lustration

noun
  • A rite of purification, especially washing. 

  • The restoration of credibility to a government by the purging of perpetrators of crimes committed under an earlier regime. 

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