propriety
(obsolete) The particular character or essence of someone or something; individuality.
(obsolete) A characteristic; an attribute.
(now rare) A piece of land owned by someone; someone's property.
(obsolete) More generally, something owned by someone; a possession.
The fact of possessing something; ownership.
(now rare) Correct language or pronunciation.
Suitability, fitness; the quality of being appropriate.
Correctness in behaviour and morals; good manners, seemliness.