Arithmancy
（重定向自Arithmomancy）
- For the use of the word in the Harry Potter books, see Hogwarts subjects - Arithmancy.
In modern numerological terminology, arithmancy (a shortened form of Greek ἀριθμομαντεία divination by numbers) is a form of divination based on assigning numerical value to a word or phrase, by means of a simplified version of ancient Greek isopsephy or Hebrew/Aramaic gematria, as adapted to the Latin alphabet. Arithmancy is associated with the Chaldeans, Platonists, Pythagoreans, and the Kabbalah.