/ɪˈmɛməriəl prɪˈskrɪpʃən/ – Phrase
Definition: thời hiệu xa xưa.
A more thorough explanation: Immemorial prescription refers to a legal concept where a right or claim is considered valid and enforceable due to the fact that it has been exercised or recognized for such a long period of time that its origin is not remembered or recorded. This concept is often used in property law to establish ownership or rights based on long-standing and continuous use or possession.
Example: The land had been used for grazing by the local community for generations, establishing an immemorial prescription right to access and use the land.