apostolic
adjective
[ ˌapəˈstɒlɪk ]
• relating to the Apostles.
• "apostolic writings"
• relating to the Pope, especially when he is regarded as the successor to St Peter.
• "an apostolic nuncio"
Origin:
Middle English: from French apostolique or ecclesiastical Latin apostolicus, from Greek apostolikos, from apostolos (see apostle).