The act of attesting; testimony; witness; a solemn or official declaration, verbal or written, in support of a fact; evidence. The truth appears from the attestation of witnesses, or of the proper officer. The subscription of a name to a writing as a witness, is an attestation.
attestation in German is Zeugnis, Beglaubigung, Bescheinigung
attestation in Italian is testimonianza, legalizzazione
attestation in Spanish is comprobacion
attestation in Swedish is attest