alighten vs gleam

alighten

verb
  • To make light; to illuminate or brighten. 

  • To lighten; to reduce in weight or heaviness. 

  • To alight, to dismount or get down from. 

  • To alight; to land, to descend and rest. 

gleam

verb
  • Chiefly in conjunction with an adverb: to cause (light) to shine. 

  • To shine, especially in an indistinct or intermittent manner; to glisten, to glitter. 

  • To be strongly but briefly apparent. 

noun
  • A bright, but intermittent or short-lived, appearance of something. 

  • An appearance of light, especially one which is indistinct or small, or short-lived. 

  • A look of joy or liveliness on one's face. 

  • An indistinct sign of something; a glimpse or hint. 

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