predatory vs thiefy

predatory

adj
  • Exploiting or victimizing others for personal gain. 

  • Living by preying on other living animals. 

  • Of, or relating to a predator. 

thiefy

adj
  • Like a thief; thievish; thieving 

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