cedar vs lemon balm

cedar

noun
  • A flowering tree of the family Meliaceae, especially of the genera Cedrela or Toona. 

  • A coniferous tree of the family Cupressaceae, especially of the genera Juniperus, Cupressus, Calocedrus, or Thuja. 

  • A coniferous tree of the genus Cedrus in the family Pinaceae. 

  • The aromatic wood from a Cedrus tree, or from any of several not closely related trees. 

lemon balm

noun
  • A perennial herb, Melissa officinalis, of southern Europe; used as a flavouring in ice cream etc. 

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