ap·os·tol·ic (ăp′ə-stŏlĭk) also ap·os·tol·i·cal (-ĭ-kəl)
1. Of or relating to an apostle.
a. Of, relating to, or contemporary with the 12 Apostles.
b. Of, relating to, or derived from the teaching or practice of the 12 Apostles.
a. Of or relating to a succession of spiritual authority from the 12 Apostles, regarded by Anglicans, Roman Catholics, Eastern Orthodox, and some others to have been perpetuated by successive ordinations of bishops and to be requisite for valid orders and administration of sacraments.
b. Roman Catholic Church Of or relating to the pope as the successor of Saint Peter; papal.
ap′os·tol·ici·ty (-stə-lĭsĭ-tē) n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.