n. pl. prop·er·ties
a. Something owned; a possession.
b. A piece of real estate: has a swimming pool on the property.
c. Something tangible or intangible to which its owner has legal title: properties such as copyrights and trademarks.
d. Something tangible or intangible, such as a claim or a right, in which a person has a legally cognizable, compensable interest.
e. Possessions considered as a group: moved with all his property.
2. A theatrical prop.
3. An attribute, characteristic, or quality: a compound with anti-inflammatory properties. See Synonyms at quality.
[Middle English proprete, properte, from Anglo-Norman properte and Old French proprete, alterations (influenced by Anglo-Norman and Old French propre, one's own) of Old French propriete, from Latin proprietās, specific character (of a person or thing), ownership, property (formed on the model of Greek idiotēs, specific character, from idios, one's own), from Latin proprius, one's own; see per1 in the Appendix of Indo-European roots.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.