clothes vs covers

clothes

noun
  • The covering of a bed; bedclothes. 

  • Laundry (hung on a clothesline). 

  • Items of clothing; apparel. 

covers

noun
  • The bedclothes; collectively, the sheets, blankets, etc. 

  • The tarpaulins or other devices used to cover the wicket during rain, in order to prevent it getting wet. 

  • The area of the field near cover and extra cover. 

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