“Functus officio” is a legal term in Latin that means “having fulfilled one’s function” or “having discharged one’s duty” in English. This term is usually used in the context of administrative or judicial decisions. Once an individual or entity has completed its role or duty in a specific matter, they are considered “functus officio”. This means that they no longer have any authority or jurisdiction over that particular issue. Essentially, it indicates that the decision or action taken is final and cannot be reviewed or changed by the same authority.