chickpea vs fir

chickpea

noun
  • An annual Asian plant (Cicer arietinum) in the pea family, widely cultivated for the edible seeds in its short inflated pods. 

  • A seed of this plant, often used as a food. 

fir

noun
  • Any pinaceous conifer of related genera, especially a Douglas fir (Pseudotsuga) or a Scots pine (Pinus sylvestris). 

  • A conifer of the genus Abies. 

  • Wood of such trees. 

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