Niþerness

According to the Old English Dictionary:

e;

niþerness

f. Lowness, a low position, the bottom :-- Ðá geseah hé swá þýstre dene under him in nyþernesse gesette vidit quasi vallem tenebrosam subtus se in imo positam, Bd. 3. 19 ; S. 548, 9. niþerness