/nʌŋk proʊ tʌŋk/ – Latin phrase
Definition: có hiệu lực hồi tố, có hiệu lực trở về trước.
A more thorough explanation: “Nunc pro tunc” is a Latin term used in legal contexts to refer to an action that is allowed to be done retroactively, as if it had been done at an earlier time. It is typically used to correct errors or omissions in legal documents or court records.
Example: The court granted the motion to amend the contract nunc pro tunc, meaning the amendment would be effective retroactively to the original date of the contract.