proprium
proprium is a Latin form of proprius, meaning “one's own, particular, special; characteristic; permanent”. It is the nominative singular neuter adjective or accusative singular neuter adjective or accusative singular masculine adjective.
Found 299 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 6.23.2: Hoc proprium virtutis existimant, expulsos agris finitimos cedere, neque quemquam prope audere consistere:
Seneca the Younger, Thyestes 938: Proprium hoc miseros sequitur vitium,
All forms of proprius (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.