rivière vs sparkler

rivière

noun
  • A necklace of diamonds or other precious stones, especially one of several strings. 

sparkler

noun
  • A gem or ornament that sparkles. 

  • A hand-held firework that emits sparks. 

  • A sparkling wine. 

  • A tiger beetle. 

  • Anything that sparkles. 

  • A vivacious and charismatic person. 

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