monadnock vs versant

monadnock

noun
  • A hill or mountain standing isolated above a predominantly flat plain. 

versant

noun
  • a slope of a mountain or mountain ridge 

  • the overall slope of a region 

adj
  • conversant 

  • With the wings erect and open. 

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