अधः

अधः = अ ध ह = here carry tight
अधर = अ ध र = here carry water
अधर = नञ् धृ अच् = pull surface carry superior here knot
not carried superior and knotted = below, on ground
Sometimes it is used for उत्तर (answer)

रूढ अर्थ
below
lower
opposite is उत्तर