oilskin vs overdress

oilskin

noun
  • Cloth made from cotton and treated with oil and pigment to make it waterproof. 

  • A raincoat made from cotton fabric treated with oil and pigment to make it waterproof. 

  • Foul-weather gear worn by sailors, whether of natural or synthetic materials. 

overdress

noun
  • Any garment worn over another. 

  • Any dress (feminine-style garment) worn over another, especially over an underdress. 

verb
  • To wear too many clothes for a particular occasion. 

  • To wear clothing which is too elaborate or formal for a particular occasion. 

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