casualty vs occurrent

casualty

noun
  • Something that happens by chance, especially an unfortunate event; an accident, a disaster. 

  • An incidental charge or payment. 

  • A person in military service who becomes unavailable for duty, for any reason (notably death, injury, illness, capture, or desertion). 

  • The accident and emergency department of a hospital providing immediate treatment; a casualty department or emergency room. 

  • A person suffering from injuries or who has been killed due to an accident or through an act of violence. 

  • Specifically, a person who has been killed (not only injured) due to an accident or through an act of violence; a fatality. 

  • Someone or something adversely affected by a decision, event or situation. 

occurrent

noun
  • An event, something that occurs. 

  • One who comes to meet another. 

adj
  • Pertaining to occurrence; having to do with an occurrence. 

  • Current, actual, occurring. 

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