noun
flyleaf
FLY-leef/ˈflaɪliːf/
A blank page at the front or back of a book.
The blank flyleaf lies immediately inside the book's clothbound front cover.

Etymology
Here fly means something attached by one edge, and leaf means a paper sheet. A flyleaf was originally usually the free half of a book’s endpaper.
In context
on his body was found a diary on the Flyleaf under the heading my pledge he had written these words America must win this war
More examples
- The old novel has a yellowed flyleaf at the back.
- He checks the flyleaf for the previous owner's name.
- The book's flyleaves are thicker than its printed pages.
Forms
flyleaf · flyleaves
Similar words
- endpaper
- An endpaper may be pasted to the cover or left free.