horrenda
horrenda is a Latin form of horreo, meaning “shudder (at), tremble; bristle, stand on end”. It is the gerundive accusative plural neuter.
Found 54 times in the Latin texts on Socratos.
Where it is used
Vergil, Georgics 2.387: oraque corticibus sumunt horrenda cavatis
Vergil, Aeneid 7.323: Haec ubi dicta dedit, terras Horrenda petivit:
All forms of horreo (conjugation table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.