brooding vs daydreaming

brooding

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

adj
  • Broody; incubating eggs by sitting on them. 

  • Deeply or seriously thoughtful. 

daydreaming

noun
  • An instance of daydreaming; a daydream or reverie. 

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