accept vs decline

accept

verb
  • To receive or admit to; to agree to; to assent to; to submit to. 

  • To admit to a place or a group. 

  • To acknowledge patiently without opposition or resistance. 

  • To endure patiently. 

  • To regard as proper, usual, true, or to believe in. 

  • To receive, especially with a consent, with favour, or with approval. 

  • To agree to pay. 

  • To receive officially. 

  • To receive as adequate or satisfactory. 

  • To receive something willingly. 

decline

verb
  • To turn or bend aside; to deviate; to stray; to withdraw. 

  • To choose not to do something; refuse, forbear, refrain. 

  • To run through from first to last; to recite in order as though declining a noun. 

  • To cause to decrease or diminish. 

  • To bend downward; to bring down; to depress; to cause to bend, or fall. 

  • To move downwards, to fall, to drop. 

  • To inflect for case, number, gender, and the like. 

  • To reject a penalty against the opposing team, usually because the result of accepting it would benefit the non-penalized team less than the preceding play. 

  • To become weaker or worse. 

  • To recite all the different declined forms of (a word). 

noun
  • A weakening. 

  • Downward movement, fall. 

  • A reduction or diminution of activity. 

  • The act of declining or refusing something. 

  • A sloping downward, e.g. of a hill or road. 

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