drupe vs pome

drupe

noun
  • a kind of fruit, with a fleshy exterior, formed from the exocarp and mesocarp, surrounding a hardened endocarp which protects the seed. 

pome

noun
  • A type of fruit in which the often edible flesh arises from the swollen base of the flower and not from the carpels. 

  • A ball of silver or other metal, filled with hot water and used by a Roman Catholic priest in cold weather to warm his hands during the service. 

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