capsicum vs pimento

capsicum

noun
  • The spicy fruit of the above plants, the bell pepper. 

  • Any of several tropical American plants, of the genus Capsicum, principally the species Capsicum annuum and Capsicum frutescens, that are cultivated as edible peppers. 

pimento

noun
  • A tropical berry used to make allspice. 

  • A red sweet pepper, a cultivar of Capsicum annuum, used to make relish, stuffed into olives, or used as spice. 

  • The tree on which it grows. 

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