occurrence vs occurrent

occurrence

noun
  • An actual instance when a situation occurs; an event or happening. 

  • The lexical aspect (aktionsart) of verbs or predicates that change in or over time. 

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 occurrence and occurrent occurred in a corpus of books? (source: Google Ngram Viewer )