oilcloth vs rug

oilcloth

noun
  • A fabric or cloth treated on one side with a waterproof covering, especially one made from linseed oil etc.; used for flooring, tablecloths, kitchen shelves and sometimes furniture covering. 

rug

noun
  • A (usually thick) piece of fabric used for warmth (especially on a bed); a blanket. 

  • A dense growth of chest hair. 

  • A cloth covering for a horse. 

  • A wig; a hairpiece. 

  • A partial covering for a floor. 

  • The female pubic hair. 

  • A rough, woolly, or shaggy dog. 

verb
  • To pull roughly or hastily; to plunder; to spoil; to tear. 

  • To cover with a rug. 

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