jambul vs mountain apple

jambul

noun
  • The plum-like fruit of this tree. 

  • An evergreen tropical tree, Syzygium cumini. 

mountain apple

noun
  • The Malay apple or pommerac (Syzygium malaccense). 

  • Used other than figuratively or idiomatically: see mountain, apple. 

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