noun
1Logic
= "property".2Chiefly . An essential attribute of something, a distinctive characteristic; essential nature, selfhood.
Origin
Mid 16th century; earliest use found in Thomas Wilson (d. 1581), humanist and administrator. From classical Latin proprium one's own property, special feature or property, peculiarity, in post-classical Latin also essential attribute or characteristic, property in logic, use as noun of neuter singular of proprius.
Are You Learning English? Here Are Our Top English Tips