Ulai

Boyd’s Bible Dictionary:

(pure water). A river in the province of Elam, where the palace of Shushan stood, on whose banks Daniel saw the vision of the ram and the he-goat (Dan. 8:2-162And I saw in a vision; and it came to pass, when I saw, that I was at Shushan in the palace, which is in the province of Elam; and I saw in a vision, and I was by the river of Ulai. 3Then I lifted up mine eyes, and saw, and, behold, there stood before the river a ram which had two horns: and the two horns were high; but one was higher than the other, and the higher came up last. 4I saw the ram pushing westward, and northward, and southward; so that no beasts might stand before him, neither was there any that could deliver out of his hand; but he did according to his will, and became great. 5And as I was considering, behold, an he goat came from the west on the face of the whole earth, and touched not the ground: and the goat had a notable horn between his eyes. 6And he came to the ram that had two horns, which I had seen standing before the river, and ran unto him in the fury of his power. 7And I saw him come close unto the ram, and he was moved with choler against him, and smote the ram, and brake his two horns: and there was no power in the ram to stand before him, but he cast him down to the ground, and stamped upon him: and there was none that could deliver the ram out of his hand. 8Therefore the he goat waxed very great: and when he was strong, the great horn was broken; and for it came up four notable ones toward the four winds of heaven. 9And out of one of them came forth a little horn, which waxed exceeding great, toward the south, and toward the east, and toward the pleasant land. 10And it waxed great, even to the host of heaven; and it cast down some of the host and of the stars to the ground, and stamped upon them. 11Yea, he magnified himself even to the prince of the host, and by him the daily sacrifice was taken away, and the place of his sanctuary was cast down. 12And an host was given him against the daily sacrifice by reason of transgression, and it cast down the truth to the ground; and it practised, and prospered. 13Then I heard one saint speaking, and another saint said unto that certain saint which spake, How long shall be the vision concerning the daily sacrifice, and the transgression of desolation, to give both the sanctuary and the host to be trodden under foot? 14And he said unto me, Unto two thousand and three hundred days; then shall the sanctuary be cleansed. 15And it came to pass, when I, even I Daniel, had seen the vision, and sought for the meaning, then, behold, there stood before me as the appearance of a man. 16And I heard a man's voice between the banks of Ulai, which called, and said, Gabriel, make this man to understand the vision. (Daniel 8:2‑16)).

Concise Bible Dictionary:

River flowing near to the city of Shushan, where Daniel saw himself in a vision (Dan. 8:2, 162And I saw in a vision; and it came to pass, when I saw, that I was at Shushan in the palace, which is in the province of Elam; and I saw in a vision, and I was by the river of Ulai. (Daniel 8:2)
16And I heard a man's voice between the banks of Ulai, which called, and said, Gabriel, make this man to understand the vision. (Daniel 8:16)
). It is judged to be the Eulaeus of the Greeks and Romans. Identified by some with the Kerkhah, an affluent of the Tigris, and this agrees with the upper Eulaeus. Others have traced it to the Kuran, another affluent of the Tigris, and this agrees with the lower Eulaeus; but at one part a branch of the former once ran into the latter.

Strong’s Dictionary of Hebrew Words:

Transliteration:
’Uwlay
Phonic:
oo-lah’ee
Meaning:
of Persian derivation; the Ulai (or Eulaeus), a river of Persia
KJV Usage:
Ulai

Jackson’s Dictionary of Scripture Proper Names:

my leaders (mighties)

Potts’ Bible Proper Names:

Muddy water; strength; pool; senseless:―a river of Persia, Dan. 8:2. {Aqua lutosa}