Diagnostic Misconceptions - Analysing Repetition

Test yourself on Diagnostic Misconceptions - Analysing Repetition

• "Charter'd" means that something has been made into a law and cannot be changed.
  Why is the word "charter'd" repeated in these lines?
  
  "I wander thro' each charter'd street,
  Near where the charter'd Thames does flow."

• Why is the word "cry" repeated in the lines below?
  
  "In every cry of every man,
  In every infants cry of fear,"