Neo is a prefix from the ancient Greek word for "new" or "young".
Almagest is the name of the ancient book written by the Greek philosopher Ptolemy. It presents an Earth-centered view of the solar system and was accepted as an astronomical authority for over a thousand years. The book was originally titled the "Syntax Mathematica" but was commonly referred to as Hē Megalē Syntaxis, or "The Great Treatise". As with many ancient Greek works, the Almagest was preserved to the modern day by way of Islamic scholars; Almagest is a rough transliteration of the Arabic al-Majisti, "the Majestic One", which is itself a translation of the original Greek superlative megiste, "greatest".