'Terribly' in the Bible

“Lord, have mercy on my son, for he is a lunatic (moonstruck) and suffers terribly; for he often falls into the fire and often into the water.

Now the centurion, and those who were with him keeping guard over Jesus, when they saw the earthquake and the things that were happening, they were terribly frightened and filled with awe, and said, “Truly this was the Son of God!”