alluvion vs finale

alluvion

noun
  • The increase in the area of land due to the deposition of sediment (alluvium) by a river. 

finale

noun
  • The chronological conclusion of a series of narrative works. 

  • The grand end of something, especially a show or piece of music. 

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