crook vs straighten

crook

verb
  • To become bent or hooked. 

  • To turn from the path of rectitude; to pervert; to misapply; to twist. 

  • To bend, or form into a hook. 

noun
  • A small tube, usually curved, applied to a trumpet, horn, etc., to change its pitch or key. 

  • A pothook. 

  • A bent or curved part; a curving piece or portion (of anything). 

  • A bishop's standard staff of office. 

  • A bend; turn; curve; curvature; a flexure. 

  • An artifice; a trick; a contrivance. 

  • A person who steals, lies, cheats or does other dishonest or illegal things; a criminal. 

  • A specialized staff with a semi-circular bend (a "hook") at one end used by shepherds to control their herds. 

  • A bending of the knee; a genuflection. 

adj
  • Ill, sick. 

  • Bad, unsatisfactory, not up to standard. 

  • Annoyed, angry; upset. 

straighten

verb
  • To become straight. 

  • To clarify a situation or concept to (an audience). 

  • To bribe or corrupt. 

  • To stand up, especially from a sitting position. 

  • To cause to become straight. 

  • To put in order; to sort; to tidy up. 

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