ferum
ferum is a Latin form of ferus, meaning “wild, savage; (fera, f.) wild animal, beast”. It is the accusative singular masculine adjective.
Found 52 times in the Latin texts on Socratos.
Where it is used
Cicero, Pro S. Roscio Amerino 74: … i perveniri solet? et simul tibi in mentem veniat facito quem ad modum vitam huiusce depinxeris; hunc hominem ferum atque agrestem fuisse, numquam cum homine quoquam conlocutum esse, numquam in oppido constitisse.
All forms of ferus (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.