'Nether' in the Bible

Who answered, Give me a blessing; for thou hast given me a south land; give me also springs of water. And he gave her the upper springs, and the nether springs.

And goeth down westward to the coast of Japhleti, unto the coast of Bethhoron the nether, and to Gezer: and the goings out thereof are at the sea.

And the border went over from thence toward Luz, to the side of Luz, which is Bethel, southward; and the border descended to Atarothadar, near the hill that lieth on the south side of the nether Bethhoron.