propriety

Short definition from Wiktionary

Noun

1. 1
   The particular character or essence of someone or something; individuality.
2. 2
   A characteristic; an attribute.
3. 3
   A piece of land owned by someone; someone's property.
4. 4
   More generally, something owned by someone; a possession.
5. 5
   The fact of possessing something; ownership.
6. 6
   Correct language or pronunciation.
7. 7
   Suitability, fitness; the quality of being appropriate.
8. 8
   Correctness in behaviour and morals; good manners, seemliness.