Before the printing press, every book was a one-off. Scribes copied manuscripts by hand, introducing small changes with each copy, so the notion of a fixed 'version' barely existed. When Gutenberg's press made it possible to produce hundreds of identical texts, publishers needed a word for each distinct print run — and Latin editio, from edere ('to put forth, give out'), fit perfectly. English adopted it through French in the 15th century. The Latin root combines ex- ('out') and dare ('to give'), making an edition literally something 'given out' to the world. Over time the word expanded beyond books to newspapers, recordings, and software. A 'first edition' of a rare book can now fetch millions at auction, turning what was once a simple publishing term into a collector's holy grail.