arborvitae vs white cedar

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. 

white cedar

noun
  • An evergreen coniferous tree of the family Cupressaceae, native to the northeastern US and southeastern Canada, Thuja occidentalis. 

  • The Atlantic white cypress, Chamaecyparis thyoides. 

  • The Mexican white cedar, Cupressus lusitanica 

  • The chinaberry, Melia azedarach. 

  • Tabebuia heterophylla, of the Caribbean and South America. 

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