foreword

 
Pronunciation: /ˈfɔːwəːd/

noun

  • a short introduction to a book, typically by a person other than the author.

Origin:

mid 19th century: from fore- + word, on the pattern of German Vorwort

Do not confuse forward with foreword. Forward mainly means 'towards the front' ( the car moved forward), whereas foreword means 'a short introduction to a book'.