lustration vs wudu

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. 

wudu

noun
  • the state of purity that is achieved by this washing 

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