cool cat vs temperate

cool cat

noun
  • An individual who is at ease and self-assured; one who is calm and composed in interactions with others. 

  • A person who performs or appreciates jazz, especially one whose style of speech and movement is relaxed and rhythmic. 

temperate

adj
  • Proceeding from temperance. 

  • Moderate; not excessive 

  • Living in an environment that is temperate, not extreme. 

  • Moderate in the indulgence of the natural appetites or passions 

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