miscarriage vs stillborn

miscarriage

noun
  • The spontaneous natural termination of a pregnancy, especially before it is viable; the fatal expulsion of a foetus from the womb before term. 

  • A failure; a mistake or error. 

stillborn

noun
  • A baby that is born dead. 

adj
  • Dead at birth. 

  • Ignored, without influence, or unsuccessful from the outset; abortive. 

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