DECLINE v. 2 definitions
To bend, or lean downward; to take a downward direction; to bend over or hang down, as from weakness, weariness, despondency, etc.; to condescend. "With declining head." Shak. He . . . would decline even to the lowest of his family. Lady Hutchinson. Disdaining to decline, Slowly he falls, amidst triumphant cries. Byron…
DECLIVITY n.
Deviation from a horizontal line; gradual descent of surface; inclination downward; slope; -- opposed to acclivity, or ascent; the same slope, considered as descending, being a declivity, which, considered as ascending, is an acclivity.
DESCEND v.
To pass from a higher to a lower place; to move downwards; to come or go down in any way, as by falling, flowing, walking, etc.; to plunge; to fall; to incline downward; -- the opposite of ascend. The rain descended, and the floods came. Matt. vii. 25. We will here descend to matters of later date. Fuller.…