commenting vs input

commenting

noun
  • The making of a comment; commentary. 

input

noun
  • Contribution of work or information, as an opinion or advice. 

  • Data fed into a process with the intention of it shaping or affecting the output of that process. 

  • That which is put in, as in an amount. 

  • An input jack. 

  • The act or process of putting in; infusion. 

verb
  • To accept data that is entered. 

  • To enter data. 

  • To put in; put on. 

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