contrivance vs still life

contrivance

noun
  • Something overly artful or artificial. 

  • A means, such as an elaborate plan or strategy, to accomplish a certain objective. 

  • A (mechanical) device to perform a certain task. 

still life

noun
  • A work of art depicting an arrangement of inanimate objects. 

  • A pattern that does not change from one generation to the next. 

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