ascent vs esker

ascent

noun
  • An eminence, hill, or high place. 

  • The act of ascending; a motion upwards. 

  • An increase, for example in popularity or hierarchy 

  • The ascender height in a typeface. 

  • The degree of elevation of an object, or the angle it makes with a horizontal line; inclination; gradient; steepness 

  • The way or means by which one ascends. 

esker

noun
  • A long, narrow, sinuous ridge created by deposits from a stream running beneath a glacier. 

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