'Terribly' in the Bible

They [the stricken, deprived of all in which they had trusted] will go into the caves of the rocksAnd into the holes of the ground [fleeing]From the terror and dread of the LordAnd from the splendor of His majesty,When He arises to terrify the earth.

To go into the caverns of the rocks and into the clefts of the [ragged] cliffs [as they flee]From the terror and dread of the Lord and the splendor of His majesty,When He arises to terrify the earth.

“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!”

After screaming out and throwing him into a terrible convulsion, it came out. The boy looked so much like a corpse [so still and pale] that many [of the spectators] said, “He is dead!”

And an angel of the Lord suddenly stood before them, and the glory of the Lord flashed and shone around them, and they were terribly frightened.