IPA: /ˈprɛfətəri/
KK: /ˈprɛfətɔri/
Related to or serving as an introduction, often found at the beginning of a book or document.
The author included a prefatory note to explain the purpose of the book.
Prefatory → It is formed from "pre-" (meaning before) and "fatum" (from Latin "fari", meaning to speak). The word "prefatory" refers to something that is spoken or written before the main text, such as a preface.
Think of something that is 'spoken before' ('pre-') the main content, like a preface in a book.