abstergent vs detersive

abstergent

noun

  • A substance used to cleanse; a detergent. 

adj

  • Cleansing, detergent. 

detersive

noun

  • A cleansing agent; a detergent. 

adj

  • Having cleansing abilities 

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