attrit vs joker

attrit

noun
  • One who voluntarily or involuntarily leaves a company; a termed employee. 

verb
  • To be reduced in quantity through attrition. 

  • To lose, or to kill, troops by attrition due to sustained firepower. 

  • To engage in attrition; to quit or drop out. 

  • To wear down through attrition, especially mechanical attrition. 

joker

noun
  • An unspecified, vaguely disreputable person. 

  • A funny person. 

  • A friendly unit that acts as a suspected hostile unit in a military excercise. 

  • A jester. 

  • A person who makes jokes. 

  • A clause in a contract that undermines its apparent provisions. 

  • A man. 

  • A playing card that features a picture of a joker (that is, a jester) and that may be used as a wild card in some card games. 

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