sincerely vs without prejudice

sincerely

adv
  • In a sincere or earnest manner; honestly. 

  • A conventional formula for ending a letter, used when the salutation addresses the person for whom the letter is intended by his or her name. 

without prejudice

prep
  • Not affecting nor considering other possibly related issues. 

  • Without affecting a legal interest. 

  • A term used to allow a statement or proposal in communications, while allowing the party to return to their original position without being impeded by the described statement or proposal. 

How often have the words sincerely and without prejudice occurred in a corpus of books? (source: Google Ngram Viewer )