How can the amendments to the US Constitution be eliminated?

Upon the confirmation of the 38th yea, the Amendment becomes part of the Constitution, amending, or changing, whatever the subject of the amendment covers--whether it be a new cause, or eliminating an old Amendment. read more

By another amendment that modifies or reverses it. Example (from Wikipedia): The Twenty-first Amendment (Amendment XXI) to the United States Constitution repealed the Eighteenth Amendment to the United States Constitution, which had mandated nationwide Prohibition on alcohol on January 16, 1919. read more

Amendments go through a multi-step process to be added to the US Constitution. There are two stages. The first is the proposal stage. The US Congress (both houses) or a constitutional convention or the States can propose an amendment by 2/3rds of either group agreeing on it. At that point the amendment goes to the States for ratification. read more