oil vs still life

oil

noun
  • An oil painting. 

  • petroleum 

  • petroleum-based liquid used as fuel or lubricant. 

  • Liquid fat. 

  • Oil paint. 

  • Containing oil, conveying oil; intended for or capable of containing oil. 

verb
  • To lubricate with oil. 

  • To grease with oil for cooking. 

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 oil and still life occurred in a corpus of books? (source: Google Ngram Viewer )