To attach to the beginning of data. For example, a header is "prepended" to a network packet. Although it sounds correct, prepend is not an English word. It was created to sound like the opposite of "append," which means to add to the end. The correct English word is "prefix;" for example, "the header is prefixed to the packet." See prefix.
To add or attach as a supplement to something at the beginning.
Prepended an introduction to the manuscript.
Origin of prepend
- pre– -pend (as in append)
From American Heritage Dictionary of the English Language, 5th Edition
- From pre- + (ap)pend, by analogy with append.
- From pre- + Latin pendere "˜weigh'.