1. 礼仪：proprietary 财产权 | proprieties 礼仪 | proprietor 所有人

2. 礼仪/礼节：proprietary /其自身/所有的/专有的/所有者/业主/所有权/ | proprieties /礼仪/礼节/ | proprietor /所有者/经营者/业主/

1. 礼节；行为的规矩；礼貌
The proprieties are the standards of social behaviour which most people consider socially or morally acceptable.

e.g. ...respectable couples who observe the proprieties but loathe each other.
遵守礼节但互相憎恨的受人尊敬的夫妇