encircling vs rondure

encircling

noun

  • encirclement 

adj

  • enclosing, skirting 

rondure

noun

  • A graceful curvature or round object; a ring; a sphere. 

  • The quality of being round; roundness. 

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