The Meroitic Language — The Script That Has Not Yet Been Deciphered
Between the third century BC and the fourth century AD, the Kushites wrote their own language in an alphabet they themselves invented in the Kingdom of Meroe: only twenty-three symbols, in two parallel forms — a hieroglyphic script carved in stone for temples and royal tombs, and a cursive script written with a pen for everyday documents and records.
In 1909 the British Egyptologist Francis Llewellyn Griffith (University of Oxford) succeeded in deciphering the phonetic values of the symbols from texts combining Meroitic and Egyptian, so scholars became able to read Meroitic texts aloud — but without understanding their meaning. The script was deciphered, but the language itself remains a mystery: only about 250 words have agreed-upon meanings to this day, such as "ato" meaning water and "tenke" meaning west.
The reason is that Meroitic has no "Rosetta Stone" of its own: no complete bilingual text has been found, and there is no known closely related language to compare it with, as it belongs to the Nilo-Saharan language family without clear relatives. UNESCO organized a conference in Cairo in 1974 in support of the scientific teams working to decipher it, and research is still ongoing.
The oldest known Meroitic text is inscribed in the temple of Queen Shanakdakhete at Naqa (around 180–170 BC), and the longest cursive text is King Taneyidamani's inscription in the Temple of Amun at Jebel Barkal (160 lines). Professor Abdel Rahim Mohamed Khabir, one of the most prominent Sudanese specialists in it, describes it as the oldest written language in Africa south of the Sahara — a declaration of the identity of a Kushite nation independent of Pharaonic Egypt.
📚 Sources: New Scientist — "Eight writing systems that still defy understanding", Professor Abdel Rahim Mohamed Khabir in "The Champollion of the Meroitic Language and Sudan's Rosetta Stone" (Sudaress), The Arabic Encyclopedia (The Meroitic Language / Meroitic Script) — Editorial Team