circumlocutionary vs obvolute

circumlocutionary

adj
  • Articulated in a roundabout manner; tautological or with repetitive language. 

  • Evasive, avoiding difficult questions or key points. 

obvolute

adj
  • overlapping; contorted; convoluted 

  • Having two opposite leaves, each with one edge overlapping the nearest edge of the other. 

  • Having a circle of several leaves or petals which overlap in that manner. 

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