occurrent vs up-to-date

occurrent

adj
  • Current, actual, occurring. 

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

noun
  • An event, something that occurs. 

  • One who comes to meet another. 

up-to-date

adj
  • Current; recent; the latest. 

  • Informed about the latest news or developments; abreast. 

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