occurrent vs portent

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. 

portent

noun
  • Something that portends an event about to occur, especially an unfortunate or evil event; an omen. 

  • A portending; significance 

  • Something regarded as portentous; a marvel; prodigy. 

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