immixture vs soldering

immixture

noun
  • The act, or the result of immixing 

soldering

noun
  • An instance of soldering. 

  • A soldered joint. 

  • A method of joining two metallic surfaces by melting an alloy between them. 

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