indenture vs misunderstanding

indenture

noun
  • A contract which binds a person to work for another, under specified conditions, for a specified time (often as an apprentice). 

  • An indentation; a recess. 

  • A document, written as duplicates separated by indentations, specifying such a contract. 

verb
  • To indent; to make hollows, notches, or wrinkles in; to furrow. 

  • To bind a person under such a contract. 

misunderstanding

noun
  • A mistake as to the meaning of something or a specific point of view; erroneous interpretation or comprehension; misconception. 

  • A disagreement; difference of opinion; dissension; quarrel. 

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