extortionate vs surfeitive

extortionate

adj
  • Greatly exceeding what is moderate or reasonable; exorbitant. 

  • Of, related to, or typifying extortion (“the practice of obtaining money or other property by the use of force or threats”). 

surfeitive

adj
  • excessive 

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