ghusl vs lustration

ghusl

noun
  • A full-body wash taken by Muslims to restore the body to a state of purity. 

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