amalgamation vs sundering

amalgamation

noun
  • The production of an alloy of mercury and another metal. 

  • The result of amalgamating; a mixture or alloy. 

  • The process of amalgamating; a mixture, merger or consolidation. 

sundering

noun
  • The act by which something is sundered. 

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