antemortem vs premortem

antemortem

adj

  • Having been inflicted or having occurred before death. 

adv

  • Having been inflicted or having occurred before death. 

premortem

adj

  • Before death. 

adv

  • Before death. 

noun

  • An analysis of potential failure before it happens. 

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