commodity vs convenience

commodity

noun
  • Something useful or valuable. 

  • Raw materials, agricultural and other primary products as objects of large-scale trading in specialized exchanges. 

  • Undifferentiated goods characterized by a low profit margin, as distinguished from branded products. 

  • Anything which has both a use-value and an exchange-value. 

  • Anything movable (a good) that is bought and sold. 

convenience

noun
  • Any object that makes life more convenient; a helpful item. 

  • The quality of being convenient. 

  • A convenient time. 

verb
  • To make convenient 

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