The Aramaic alphabet is ancestral to what alphabet known variously by scholars as the Jewish script?
Aramaic language Aramaic (אַרָמָיָא "Arāmāyā", Syriac: ܐܪܡܝܐ‎ , Arabic: آرامية‎ ‎ ) is a language or group of languages belonging to the Semitic subfamily of the Afroasiatic language family. More specifically, it is part of the Northwest Semitic group, which also includes the Canaanite languages such as Hebrew and Phoenician. The Aramaic alphabet was widely adopted for other languages and is ancestral to the Hebrew, Syriac and Arabic alphabets.
Ancient South Arabian script The ancient South Arabian script (Old South Arabian "msnd"; modern Arabic: المُسنَد‎ ‎ "musnad") branched from the Proto-Sinaitic script in about the 9th century BC. It was used for writing the Old South Arabian languages of the Sabaic, Qatabanic, Hadramautic, Minaean, Himyaritic, and Ge'ez in Dʿmt. The earliest inscriptions in the alphabet date to the 9th century BC in the Northern Red Sea Region, Eritrea. There are no vowels, instead using the mater lectionis to mark them.