abluent vs cleansing

abluent

adj

  • Washing away; carrying off impurities; detergent. 

noun

  • A detergent. 

cleansing

adj

  • That cleanses. 

noun

  • The process of removing dirt, toxins etc. 

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