endpaper
noun
end·pa·per ˈen(d)-ˌpā-pər 
: a once-folded sheet of paper having one leaf pasted flat against the inside of the front or back cover of a book and the other pasted at the base to the first or last page
Example Sentences
Recent Examples on the Web An endpaper ripped out of one of the old books was on the table, someone having scribbled in pencil, Stay off. 
Lauren Groff, The New Yorker, 27 Apr. 2021 No animal is injured, thank goodness, in this playful introduction for children ages 3-6 to Blake’s famous poem, which appears unaltered in the endpapers. Meghan Cox Gurdon, WSJ, 15 Feb. 2019 Each book comes with an inside cover designed especially for the book in colorfully patterned endpaper and a matching bookmark. Catie L'heureux, The Cut, 2 Feb. 2018 The book’s gorgeous endpapers are based on vintage Disneyland shopping bags. Chris Nichols, Los Angeles Magazine, 14 Dec. 2017 In the opening endpapers, against a backdrop of darkness, an angel carrying a lighted candle leads a sleepy parade of small children forward, into the book. Meghan Cox Gurdon, WSJ, 7 July 2017 The book's endpapers, that wallpaper glued to the inside cover, are both adhesive and cohesive, serving as a visual table of contents and tone-setting allegory. Claire Howorth, Time, 12 Oct. 2017 Willems began the story on the endpapers, rather than after the title page. Rivka Galchen, The New Yorker, 6 Feb. 2017 See More
Lauren Groff, The New Yorker, 27 Apr. 2021 No animal is injured, thank goodness, in this playful introduction for children ages 3-6 to Blake’s famous poem, which appears unaltered in the endpapers. Meghan Cox Gurdon, WSJ, 15 Feb. 2019 Each book comes with an inside cover designed especially for the book in colorfully patterned endpaper and a matching bookmark. Catie L'heureux, The Cut, 2 Feb. 2018 The book’s gorgeous endpapers are based on vintage Disneyland shopping bags. Chris Nichols, Los Angeles Magazine, 14 Dec. 2017 In the opening endpapers, against a backdrop of darkness, an angel carrying a lighted candle leads a sleepy parade of small children forward, into the book. Meghan Cox Gurdon, WSJ, 7 July 2017 The book's endpapers, that wallpaper glued to the inside cover, are both adhesive and cohesive, serving as a visual table of contents and tone-setting allegory. Claire Howorth, Time, 12 Oct. 2017 Willems began the story on the endpapers, rather than after the title page. Rivka Galchen, The New Yorker, 6 Feb. 2017 See More Word History
First Known Use
1818, in the meaning defined above