Ancient South Arabian

Short definition from Wiktionary

Adjective

1. 1
   Related to the Ancient South Arabian script.
2. 2
   Synonym of Old South Arabian.

Proper noun

1. 1
   A branch of South Semitic abjads used from the late 2nd millennium BCE to the 6th century CE to write the Old South Arabian languages and the Ethiopic Ge'ez language.
2. 2
   Synonym of Old South Arabian.