nefario
nefario is a Latin form of nefarius, meaning “wicked, impious, abominable”. It is the ablative singular neuter adjective.
Found 41 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 7.38.7: An dubitamus quin nefario facinore admisso Romani iam ad nos interficiendos concurrant? Proinde, si quid in nobis animi est,
All forms of nefarius (declension 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.