feticide vs monstrosity

feticide

noun
  • One who kills a fetus. 

  • The killing of a fetus or embryo; an induced abortion. 

monstrosity

noun
  • A monstrous person, thing, or act. 

  • The state of being monstrous. 

  • An organism showing abnormal development or deformity. 

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