brooding vs warm-blooded

brooding

adj
  • Deeply or seriously thoughtful. 

  • Broody; incubating eggs by sitting on them. 

noun
  • A spell of brooding; the time when someone broods. 

warm-blooded

adj
  • Passionate. 

  • Maintaining a relatively constant and warm body temperature, regardless of the ambient temperature; endothermic. 

How often have the words brooding and warm-blooded occurred in a corpus of books? (source: Google Ngram Viewer )