glimmer vs illuminant

glimmer

noun
  • A flash of light. 

  • A faint or remote possibility. 

  • A faint light; a dim glow. 

verb
  • To shine with a faint, unsteady light. 

illuminant

noun
  • Something that illuminates. 

adj
  • That illuminates. 

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