OT.filter - kjv heavily:

kjv@Exodus:14:25 @ And took off their chariot wheels, that they drave them heavily: so that the Egyptians said, Let us flee from the face of Israel; for the LORD fighteth for them against the Egyptians.

kjv@Psalms:35:14 @ I behaved myself as though he had been my friend or brother: I bowed down heavily, as one that mourneth for his mother.

kjv@Isaiah:47:6 @ I was wroth with my people, I have polluted mine inheritance, and given them into thine hand: thou didst shew them no mercy; upon the ancient hast thou very heavily laid thy yoke.