Sud (Σούδ v.r. [in No. 2] Σουδά, Σουσά, etc.), the name of a stream and of a person in the Apocrypha.
1. A river in the immediate neighborhood of Babylon, on the banks of which Jewish exiles lived (Bar. 1, 4). No such river is known to geographers; but if we assume that the first part of the book of Baruch was written in Hebrew, the original text may have been Sur, the final ר having been: changed into ד. In this case the name would represent, not the town of Soras as suggested by Bochart (Phaleg, 1; 8), but the river Euphrates itself, which is always named by Arab geographers, "the river of Sura," a corruption probably of the Sippara of the inscriptions (Rawlinson, Herod. 1, 611, note 4).
2. A corrupt Grecism (1 Esdr. 5, 29) of the name SIA or SIAHA (q.v.) in the Hebrew lists (Ezr 2:44; Ne 7:47).