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Named after David McConnell Smyth (1833–1907), inventor of the first book-sewing machine.
Etymology from Wiktionary, CC BY-SA 4.0.
Smyth sewing
Today it means: A method of hardcover bookbinding in which the signatures of the book are folded and stitched through the fold before being sewn and glued together at the spine to form a text block. Full definition →