antiochian

from The Century Dictionary.

• Pertaining to Antiochus of Ascalon (died about 68 b. c.), the founder of a sect of eclectic philosophers who sought to unite the philosophy of Plato with many of the doctrines of Aristotle and the Stoics.
• Of or pertaining to the city of Antioch.
• The mundane era of Antioch, September, 5493 b. c., employed by the Syrian Christians as the date of the creation of the world.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Pertaining to Antiochus, a contemporary with Cicero, and the founder of a sect of philosophers.
• adjective Of or pertaining to the city of Antioch, in Syria.
• adjective (Chron.) a method of computing time, from the proclamation of liberty granted to the city of Antioch, about the time of the battle of Pharsalia, B.C. 48.