minhag
noun
a custom or procedure among Jews that is so firmly established as to have almost the binding force of law.
The grammatical form denoting more than one person, place, thing, or idea.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Ceremonial laws, or minhagim, were to him a social compact among the members of a sect.
From The Haskalah Movement in Russia by Jacob S. Raisin