arborvitae vs neem

arborvitae

noun
  • Any of several North American or Asian conifers, of the genera Thuja and Thujopsis or the species Platycladus orientalis, grown for timber or ornament. 

  • The white nerve tissue of the cerebellum that has a branching structure. 

neem

noun
  • Azadirachta indica, a large, mostly evergreen tree from India, whose seeds yield the insecticide azadirachtin. 

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