sworn

A person or group who is an inveterate opponent.

testimonio bajo juramento

Evidence or a statement given by a witness under oath in a court of law.

Testimonio dado después de prestar juramento formal de decir la verdad.

A formal written declaration of facts confirmed by an oath.

deber jurado

A solemn obligation or responsibility undertaken with an oath.

Una obligación o responsabilidad solemne asumida con un juramento.