petiole vs phyllon

petiole

noun
  • The stalk of a leaf, attaching the blade to the stem. 

  • A narrow or constricted segment of the body of an insect; especially, the metasomal segment of certain Hymenoptera, such as wasps. 

  • The stalk at the base of the nest of the paper wasp. 

phyllon

noun
  • A leaf, or something (flat) resembling a leaf. 

  • A specific herb which the ancient Greek Theophrastus asserted could influence the sex of a fetus. 

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