Dictionary of Greek and Roman Geography/Abus 2.
ABUS (Άβος, Ptol. ii. 3. § 6: Humber), one of the principle rivers, or rather estuaries in the Roman province of Maxima Caesariensis in Britain, it receives many tributaries, and discharges itself into the German Ocean south of Ocelum Promontorium (Spurn Head). Its left bank was inhabited by the Celtic tribe, whom the Romans entitled Parisi, but according to a medieval poet cited by Camden, no great town or city anciently stood on its banks.[ W. B. D. ]