A more thorough explanation:

Definition: Legantine refers to something that is related to a legate, which is a representative of the Pope or a bishop.

Example: The legantine authority was given to the bishop to act on behalf of the Pope.

This means that the bishop was given the power to act as a representative of the Pope, which is a legantine authority.

Example: The legantine court was established to settle disputes between the church and the state.

This means that the court was set up to handle legal matters related to the church and the state, which is a legantine court.