Old Nubian, considered ancestral to Nobiin, was written in a Coptic-like script, an uncial variety of the Greek alphabet, extended with three Coptic letters — "sh" , "h" , and "j" — and three unique to Nubian: ⳡ "ny" and ⳣ "w" , apparently derived from the Meroitic alphabet; and ⳟ "ng" , thought to be a ligature of two Greek gammas.
