amalgamate vs cleanse

amalgamate

verb
  • To combine (free groups) by identifying respective isomorphic subgroups. 

  • To merge, to combine, to blend, to join. 

  • To make an alloy of a metal and mercury. 

adj
  • Coalesced; united; combined. 

cleanse

verb
  • To free from dirt; to clean, to purify. 

  • To spiritually purify; to free from guilt or sin; to purge. 

  • To remove (something seen as unpleasant) from a person, place, or thing. 

noun
  • An act of cleansing; a purification. 

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