glimpse vs ponder

glimpse

verb
  • To see or view briefly or incompletely. 

  • To appear by glimpses. 

noun
  • A brief look, glance, or peek. 

  • A sudden flash. 

  • A faint idea; an inkling. 

ponder

verb
  • To consider (something) carefully and thoroughly. 

  • To wonder, think of deeply. 

noun
  • A period of deep thought. 

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