noun, plural fly·leaves.
Examples from the Web for flyleaf
Would it tire you very much to write it for me in the flyleaf of this Prayer-Book that Mr. Charnock has given me?The Three Brides|Charlotte M. Yonge
On the flyleaf was written, in bold characters, “Hugo Ennis.”The Peace of Roaring River|George van Schaick
The poem was written in pencil on the flyleaf of Bartoli's Simboli, a favorite book of his.Selections from the Poems and Plays of Robert Browning|Robert Browning
Heber has inscribed a MS. note on the flyleaf to this effect.The Confessions of a Collector|William Carew Hazlitt
I combine here the data of the two lists, calling the list on the flyleaf A and that on the lower margin B.Henry the Sixth|John Blacman