scintillating vs shimmering

scintillating

adj
  • Brilliantly or impressively clever, exciting, amusing or witty. 

  • That scintillates with brief flashes of light; sparkling. 

shimmering

noun
  • A gleam or glimmer. 

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