come off vs pay off

come off

verb
  • To have some success; to succeed. 

  • To occur; to take place. 

  • To become detached. 

  • To appear; to seem; to project a certain quality. 

  • To escape or get off (lightly, etc.); to come out of a situation without significant harm. 

pay off

verb
  • To become worthwhile; to produce a net benefit. 

  • To bribe, especially to deter oversight. 

  • To pay back; to repay. 

  • To pay back (repay, pay off) the entirety of a loan, thereby effecting the release of a lien on. 

  • To fall to leeward, as the head of a vessel under sail. 

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