abortifacient vs abortogenic

abortifacient

noun

  • A drug or an agent that induces an abortion. 

adj

  • Producing miscarriage. 

abortogenic

noun

  • A substance that induces abortion; an abortifacient. 

adj

  • Causing abortion; abortifacient. 

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