1888 4 343 These 950 inscriptions fall into three classes... The third class, called the proto-Arabic, consists merely of short inscriptions, probably executed by caravans.
1889 Dec. 905 An alphabet and language which have been termed Protoarabic.
1948 D. Diringer 207 Some graffiti, known as the ‘proto-Arabic’ inscriptions.
1999 39 265 It is unrealistic to assume the existence of an alleged ‘Proto-Arabic’, at whatever time depth.