This can almost make the list. Wikipedia re. Meroitic: "The script was deciphered in 1909 by Francis Llewellyn Griffith, a British Egyptologist, based on the Meroitic spellings of Egyptian names. However, the Meroitic language itself has yet to be translated. In late 2008 the first complete royal dedication was found, which may help confirm or refute some of the current hypotheses." I have an old scan of a stele (somewhere) from a magazine that is better than any I have found on the Web.
