/ˈkʌstəˌmɛri lɔː/ – Phrase
Definition: luật tập tục.
A more thorough explanation: Customary law refers to a body of unwritten laws and practices that have developed over time within a specific community or society. These laws are based on traditional customs, practices, and beliefs that are recognized and enforced by the community. Customary law is often used in conjunction with formal legal systems to govern various aspects of social, economic, and political life within a particular community.
Example: In this jurisdiction, customary law dictates that property rights are passed down through the male line of the family.