What is moving or extending from a higher to a lower place; tending toward the earth or its center, or toward a lower level; declivous. With downward force That drove the sand along he took his way. Dryden called?

downward — Moving or extending from a higher to a lower place; tending toward the earth or its center, or toward a lower level; declivous. With downward force That drove the sand along he took his way. Dryden. (Webster's 1913.)