Eth. IASSII (Eth. Ἰάσσιοι), mentioned by Ptolemy as a population of Upper Pannonia (2.14.2). Pliny's form of the name (3.25) is Iasi. He places them on the Drave. [R.G.L]
Dictionary of Greek and Roman Geography, illustrated by numerous engravings on wood. William Smith, LLD. London. Walton and Maberly, Upper Gower Street and Ivy Lane, Paternoster Row; John Murray, Albemarle Street. 1854.