curvilinear vs inflected

curvilinear

adj
  • Having bends; curved; curvilineal. 

  • Formed by curved lines. 

inflected

adj
  • bent or curved inward or downward 

  • Changed in form to reflect function (referring to a word). 

  • Having inflected word forms; fusional. 

  • Deviating from a straight line. 

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