incurvate vs pretzelize

incurvate

verb
  • to have a curved or bent shape; to bend or curve inwards. 

  • To bend (especially inwards); to give a curved shape to. 

adj
  • bending inwards. 

  • Curved; bent; crooked. 

pretzelize

verb
  • To bend, twist, or contort; to pretzel. 

  • To deform a simple linear idea into a superfluously complex explanation. 

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