(adj) worn or shabby from overuse or (of pages) from having corners turned down; -Clifton Fadiman, Syn. eared, Example:a somewhat dog-eared duke...a bit run down; an old book with dog-eared pages
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
a. 1. Having the corners of the leaves turned down and soiled by careless or long-continued usage; -- said of a book; as, an old book with dog-eared pages. Making a page dog-eared is sometimes done deliberately to mark a location in a book. [ 1913 Webster ]
Statute books before unopened, not dog-eared. Ld. Mansfield. [ 1913 Webster ]