eventuation vs occurrence

eventuation

noun
  • The act of eventuating or happening as a result; the outcome. 

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. 

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