The word "futhark" describes an alphabet originally of 24 and later of some 16 angular characters. It is suspected to be derived from both Latin and Greek and was used for inscriptions and magic signs by the Germanic peoples, and especially by the Scandinavians and Anglo-Saxons, from about the third to the 13th centuries. The spelling "futhark" is from the first six symbols of the runic alphabet: f, u, th, a, r, k. The alphabet did, however, encounter revision of letters over time resulting in the variants "futhorc" and "futhork."