propriety

名词 propriety:

1. correct or appropriate behavior
   同义词：properness, correctitude

1. I am doubtful about the propriety of granting such a request.
   我怀疑答应这项要求是否合适。
2. We should observe the proprieties.
   我们应该遵守礼节。
3. The way these tourists dress offends local standards of propriety.
   这些游客的穿着在当地人的眼中简直不成体统。

pro.pri.e.ty

n.（名词）
【复数】 pro.pri.e.ties
The quality of being proper; appropriateness.
妥当：合适的特性；恰当
Conformity to prevailing customs and usages.See Synonyms at etiquette
得体：与流行的习俗和习惯相一致参见 etiquette
proprieties The usages and customs of polite society.
proprieties 礼节：文明社会的习俗和习惯

来源：
Middle English propriete [particular character, ownership]
中古英语 propriete [特性；所有权]
from Old French * see property
源自 古法语 *参见 property