mores

US /ˈmɔːr.eɪz/
UK /ˈmɔːr.eɪz/
1.

慣習, 風俗, 道徳

the essential or characteristic customs and conventions of a community

:
The traditional mores of the tribe were strictly observed.
部族の伝統的な慣習は厳守された。
Changing social mores have impacted public opinion.
変化する社会の慣習が世論に影響を与えた。