Vê.
In the vast caverns had both Mandos and his sister Nienna there abode but Vê was the name Mandos had given his. There in a sable hall sat Mandos and that hall was only lit with a single vessel placed in the centre, wherein some few gleaming drops of the pale dew of Telperion lay. The halls were draped with dark vapours and the tapestries of his wife Vaire, and the floors and columns were of jet.
See also Halls of Mandos.