bibliopole (n.)

"bookseller," 1775, from Latin bibliopola, from Greek bibliopoles "bookseller," from biblion "book" (see biblio-) + poles "merchant, seller," from polein "to sell" (from PIE root *pel- (4) "to sell"). Especially a dealer in rare or curious books. French has bouquinist "a dealer in second-hand books of little value."