exception vs modification

exception

noun
  • An objection, on legal grounds; also, as in conveyancing, a clause by which the grantor excepts or reserves something before the right is transferred. 

  • An objection; cavil; dissent; disapprobation; offense; cause of offense; — usually followed by to or against. 

  • An interruption in normal processing, typically caused by an error condition, that can be raised ("thrown") by one part of the program and handled ("caught") by another part. 

  • The act of excepting or excluding; exclusion; restriction by taking out something which would otherwise be included, as in a class, statement, rule. 

  • That which is excluded from others; a person, thing, or case, specified as distinct, or not included. 

modification

noun
  • The act of making a change to something while keeping its essential character intact; an alteration or adjustment. 

  • A change to an organism as a result of its environment that is not transmissable to offspring. 

  • the change undergone by a word when used in a construction (for instance am => 'm in I'm) 

  • a change to a word when it is borrowed by another language 

  • The result of modifying something; a new or changed form. 

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