consuetude

/ˈkɑnswɪˌtud/
noun
  1. A custom or established practice, especially one that has the force of law or tradition.
    • In some villages, the consuetude of communal farming has lasted for centuries.
    • Legal consuetude can sometimes override written statutes in common law systems.
    • The consuetude of tipping waitstaff varies from country to country.
Antonyms
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