(Ὀρκιστός/Orkistós). Originally probably a polis in Galatia, south of modern Ortaköy (formerly Alikel Yayla), added to Nacolea (Phrygia) at the end of the 3rd cent. AD, but Constantine  the Great undid this before 331 AD (MAMA 7, 69-75). The small town of Malcaeteni [1. 2020] was part of the territory of O. Attested as a see from the 5th cent. (Domnus at the Council of Ephesus in 431, Longinus at the Council of Chalcedon in 451: Acta Conciliorum Oecumenocorum 1,1 no. 121; 2,1,1 no. 192). A few ancient or Byzantine remains.
Olshausen, Eckart (Stuttgart),
Brill’s New Pauly, Antiquity volumes edited by: Hubert Cancik and , Helmuth Schneider, English Edition by: Christine F. Salazar, Classical Tradition volumes edited by: Manfred Landfester, English Edition by: Francis G. Gentry.
Consulted online on 15 November 2018 <http://dx.doi.org/10.1163/1574-9347_bnp_e900800>