mishmash vs montage

mishmash

verb
  • To mix together, especially in a confused way. 

  • To become mixed together. 

noun
  • A collection containing a variety of miscellaneous things. 

montage

verb
  • To combine into, or depict as, a montage. 

noun
  • The art or process of doing this. 

  • A composite work, particularly an artwork, created by assembling or putting together other elements such as pieces of music, pictures, texts, videos, etc. 

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