accomplishment vs deterioration

accomplishment

noun
  • The act of accomplishing; completion; fulfilment. 

  • The lexical aspect (aktionsart) of verbs or predicates that change over time until a natural end point. 

  • That which completes, perfects, or equips thoroughly; acquirement; attainment; that which constitutes excellence of mind, or elegance of manners, acquired by education or training. 

  • Something accomplished; an achievement. 

deterioration

noun
  • The process of making or growing worse, or the state of having grown worse. 

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