glancing vs lightning

glancing

noun
  • A sideways look; a glance. 

adj
  • Making superficial, obtuse contact with something. 

lightning

verb
  • To produce lightning. 

adj
  • Extremely fast or sudden; moving (as if) at the speed of lightning. 

noun
  • A flash of light produced by short-duration, high-voltage discharge of electricity within a cloud, between clouds, or between a cloud and the earth. 

  • Anything that moves very fast. 

  • A discharge of this kind. 

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