azedarach vs chinaberry

azedarach

noun
  • An Asiatic tree (Melia azedarach), common in the southern United States, commonly called bead tree, chinaberry, etc. 

  • The bark of the roots of the azedarach, used as a cathartic and emetic 

chinaberry

noun
  • The bead tree or azedarac, Melia azedarach, a deciduous tree in the mahogany family Meliaceae, native to India, southern China and Australia, or its fruit. 

  • Actaea rubra, a poisonous herbaceous flowering plant in the family Ranunculaceae, native to North America. 

  • The soapberry (genus Sapindus, especially Sapindus saponaria), native to the Americas. 

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