origin vs sequel

origin

noun
  • The proximal end of attachment of a muscle to a bone that will not be moved by the action of that muscle. 

  • An arbitrary point on Earth's surface, chosen as the zero for a system of coordinates. 

  • The source of a river, information, goods, etc. 

  • The beginning of something. 

  • Ancestry. 

  • The point at which the axes of a coordinate system intersect. 

sequel

noun
  • A narrative that is written after another narrative set in the same universe, especially a narrative that is chronologically set after its predecessors, or (perhaps improper usage) any narrative that has a preceding narrative of its own. 

  • The remainder of the text; what follows. Used exclusively in the set phrase "in the sequel". 

  • Thirlage. 

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