clinquant vs coruscation

clinquant

noun
  • Tinsel; glitter. 

  • Dutch metal. 

adj
  • Glittery; gleaming; sparkling; dressed in, or overlaid with, tinsel finery. 

coruscation

noun
  • A sudden display of brilliance; a flashing of light; a sparkle. 

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