atemoya vs soursop

atemoya

noun
  • The tree that bears this fruit. 

  • A hybrid between a cherimoya and a sweetsop 

soursop

noun
  • The tart, spiny, yellow-green fruit of this tree. 

  • A small tropical evergreen tree, Annona muricata. 

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