Dictionary.com
definitions

Apostolos

[ah-paws-taw-laws; English uh-pos-tl-os]
noun Greek Orthodox Church.
  1. a book containing parts of the Epistles and parts of the Acts of the Apostles.
  2. a reading from this book.

Origin of Apostolos

< Late Greek, Greek: apostle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018