overleaf
/ˌoʊvəˈlɛf/Definitions
1. noun
The page facing another, especially in a book or document.
“The key to the puzzle was located overleaf, in the section marked ‘answers’.”
2. adverb
On or from the opposite page in a book or document.
“You’ll find the rest of the information overleaf in the supplementary materials.”