laundering vs lustration

laundering

noun
  • The act, or occupation, of one who launders; washing and ironing. 

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 laundering and lustration occurred in a corpus of books? (source: Google Ngram Viewer )