straggle vs straighten

straggle

verb
  • To act in a disorderly and irregular way 

  • To stray, rove, or wander from a normal course and others of its kind. 

noun
  • An irregular, spread-out group. 

  • An outlier; something that has strayed beyond the normal limits. 

straighten

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

  • 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 become straight. 

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