overboard vs supernatural

overboard

adv
  • Over the edge; especially, off or outside of a boat. 

  • Excessively; too much. 

verb
  • To throw over the edge of a boat into the water. 

adj
  • Outside of a boat; in the water. 

supernatural

noun
  • Supernatural beings and events collectively (when used with definite article: "the supernatural") 

  • A supernatural being 

adj
  • Not of the usual; not natural; altered by forces that are not understood fully if at all. 

  • Above nature; beyond or added to nature, often so considered because it is given by a deity or some force beyond that which humans are born with. 

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