Usage: usually capitalized
1. [Theodosius I died 395 A.D. Roman emperor + English -an, adjective suffix] : of or relating to Theodosius the Great under whom the Roman state undertook to enforce Christianity and orthodoxy
2. [Theodosius II died 450 A.D. Eastern Roman emperor + English -an, adjective suffix] : of or relating to Theodosius II or the Theodosian Code promulgated during his reign codifying imperial constitutions issued since the reign of Constantine I and including laws banning paganism and penalizing heresy
II. noun
(-s)
Usage: usually capitalized
1. [Theodosius died ab 538 A.D. patriarch of Alexandria + English -an, n. suffix] : a follower of Theodosius of Alexandria the leader of the Monophysites in the 6th century
2. [Theodosius, 16th century Russ. monk + English -an, n. suffix] : a follower of the Russian monk Theodosius who preached in Lithuania in 1525 against idolatry and founded a sect practicing prayer for purification of articles acquired from unbelievers
Useful english dictionary. 2012.