inflected vs involute

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. 

involute

adj
  • Having the edges rolled with the adaxial side outward. 

  • Turned inward at the margin, like the exterior lip of the shells of species in genus Cypraea. 

  • Difficult to understand; complicated. 

  • Having a complex pattern of coils in which younger whorls only partly surround older ones. 

  • Rolled inward spirally. 

noun
  • A curve that cuts all tangents of another curve at right angles; traced by a point on a string that unwinds from a curved object. 

verb
  • To roll or curl inwards. 

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