benefit vs functionality

benefit

noun
  • An advantage; help or aid from something. 

  • An event, such as a theatrical performance, given to raise funds for some cause. 

  • A payment made in accordance with an insurance policy or a public assistance scheme. 

  • Intended audience (as for the benefit of). 

verb
  • To be or to provide a benefit to. 

  • To receive a benefit (from); to be a beneficiary. 

functionality

noun
  • The ability to do a task, performance, or execution; a set of functions that something is able or equipped to perform. 

  • The presence of a functional group. 

  • In United States trademark law, the tendency of a product design to serve a function other than identification of the product, preventing that design from being protected as a trademark. 

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