ORION  and ORUS, the names of several

Greek grammarians, frequently confused . The following are the most important . (1) Orion of Thebes in Egypt (5th century A.D.), the teacher of Proclus the neo-Platonist and of Eudocia, the wife of the younger Theodosius . He taught at Alexandria, Caesarea in Cappadocia and Byzantium . He was the author of a partly extant etymological Lexicon (ed . F . W . Sturz, 1820), largely used by the compilers of the Etymologicum Magnum, the Etymologicum Gudianum and other similar works; a collection of maxims in three books, addressed to Eudocia, also ascribed to him by Suidas, still exists in a Warsaw MS . (2) Orus of Miletus, who, according to Ritschl, flourished not later than the 2nd century A.D., and was a contemporary of Herodian and a little junior to Phrynichus (according to Reitzenstein he was a contemporary of Orion) . His chief works were treatises on orthography; on Atticisms, written in opposition to Phrynichus; on the names of nations . See F . Ritschl, De Oro et Orione Commentatio (1834) ; R .

Reitzenstein, Geschichte der griechischen Etymologika (1897); and

article " Orion " in Smith's Dictionary of Greek and Roman Biography .