cooling vs unique

cooling

adj
  • That cools. 

  • . Of food or medicine, according to traditional Chinese medicine: serving to cool or calm the body. 

noun
  • A decrease in temperature. 

  • Refrigeration. 

unique

adj
  • Of a rare quality, unusual. 

  • Being the only one of its kind; unequaled, unparalleled or unmatched. 

  • Of a feature, such that only one holder has it. 

  • Particular, characteristic. 

noun
  • A thing without a like; something unequalled or unparallelled; one of a kind. 

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