Codex Zacynthius (designated by siglum Ξ or 040 in the Gregory-Aland numbering; A1 in von Soden) is a Greek New Testament codex, dated paleographically to the 6th century. First thought to have been written in the 8th century, it is a palimpsest—the original (lower) text was washed off its vellum pages and overwritten in the 12th or 13th century. The upper text of the palimpsest contains weekday Gospel lessons (ℓ299); the lower text contains portions of the Gospel of Luke, deciphered by biblical scholar and palaeographer Tregelles in 1861. The lower text is of most interest to scholars.
Facsimile from Tregelles edition
The underwriting is 7th-century majuscule of Luke 3:7-8 with commentary; the upper writing is 13th-century minuscule of Matthew 26:39-51, part lection for Holy Thursday
Colin Macaulay, 1792, by John Smart, by permission of the Provost & Fellows of Kings College, Cambridge
In textual studies, a palimpsest is a manuscript page, either from a scroll or a book, from which the text has been scraped or washed off in preparation for reuse in the form of another document. Parchment was made of lamb, calf, or kid skin and was expensive and not readily available, so, in the interest of economy, a page was often re-used by scraping off the previous writing. In colloquial usage, the term palimpsest is also used in architecture, archaeology and geomorphology to denote an object made or worked upon for one purpose and later reused for another; for example, a monumental brass the reverse blank side of which has been re-engraved.
The Codex Ephraemi Rescriptus, a Greek manuscript of the Bible from the 5th century, is a palimpsest.
A Georgian palimpsest from the 5th or 6th century
Codex Nitriensis, with Greek text of Luke 9:22–33 (lower text)
Codex Nitriensis, with Syriac text (upper text)
