'Convulsed' in the Bible

They brought him to him, and when he saw him, immediately the spirit convulsed him, and he fell on the ground, wallowing and foaming at the mouth.

Having cried out, and convulsed greatly, it came out of him. The boy became like one dead; so much that most of them said, "He is dead."

While he was still coming, the demon threw him down and convulsed him violently. But Jesus rebuked the unclean spirit, and healed the boy, and gave him back to his father.