Nether /(nĕth"ẽr)/

Neth·er

Nether

a.
  1. Situated down or below; lying beneath, or in the lower part; having a lower position; belonging to the region below; lower; under; -- opposed to upper.
    'Twixt upper, nether, and surrounding fires.
    This darksome nether world her light Doth dim with horror and deformity.
    All my nether shape thus grew transformed.