Usted buscó: terribly (Inglés - Latín)

perterrefactus, perterrefacta, perterrefactum terribly/extremely frightened, thoroughly terrified;
perterrefacta

perterricrepus, perterricrepa, perterricrepum making/characterized by terrifying crashing/clattering sound; rattling terribly;
perterricrepa

formidilose, formidilosius, formidilosissime terribly, dreadfully; alarming; in a frightening manner; fearfully/timorously;
formidilose

and they shall go into the holes of the rocks, and into the caves of the earth, for fear of the lord, and for the glory of his majesty, when he ariseth to shake terribly the earth.
et introibunt in speluncas petrarum et in voragines terrae a facie formidinis domini et a gloria maiestatis eius cum surrexerit percutere terra

perterrefactus, perterrefacta, perterrefactum terribly/extremely frightened, thoroughly terrified; perterrefacio, perterrefacere, perterrefeci, perterrefactus make extremely frightened; terrify thoroughly;
perterrefactus