hinder vs ward off

hinder

verb
  • To delay or impede; to keep back, to prevent. 

  • To make difficult to accomplish; to act as an obstacle; to frustrate. 

adj
  • Of or belonging to that part or end which is in the rear or hind, or which follows. 

noun
  • The buttocks. 

ward off

verb
  • To avert or prevent. 

  • To parry, or turn aside. 

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