Nether - (Webster's 1828 Dictionary)
NETHER, a. [This word is of the comparative degree; the positive occurs only in composition, as in beneath. It is used only in implied comparison, as in the nether part, the nether millstone; but we never say, one part is nether than another. It is not much used.]
1. Lower; lying or being beneath or in the lower part; opposed to upper; as the nether millstone.
Distorted all my nether shape thus grew transformd.
2. In a lower place.
Twixt upper, nether and surrounding fires.
3. Belonging to the regions below.