There is a previous post by eish that showed a Canon from Carthage 418 about not having communion with a bishop who is neglecting to properly condemn heretics and convert them to orthodoxy in his jurisdiction which is an interesting topic but not exactly what im asking here since that was a condemnation of negligence not a specifically named heresy.
Of course any and all forms of prayer/concelebration/communion with heretics without their repentance and entering into the Church is Anathema. So this is a historical question not a theological one. Does anyone know of any form of Anathema by any Orthodox Bishop or Synod against any theory of Ecumenism by name before the 1983 Anathema of Ecumenism by ROCOR? Such as any of the following or similar:
Anglican Branch Theory
Papist Degrees of Participation
Calvinist Invisible Church of True Believers
World Orthodox Pluralism (such as the modern "Many Paths up the Mountain"-Elpidophoros Lambriniadis)
Anti-Proselytism
Classical Sycretism
Interpretatio Graeca
Prisca Theologia/Perennialism/Traditionalism (Marsilio Ficino/Giovanni Pico della Mirandola/Agostino Steuco/Aldous Huxley/René Guénon)
Omnism (Philip James Bailey/Edward Herbert/Ramakrishna
Freemasony (specifically mentioning it's universal religion theory?)
Theosophy/Anthroposophy (Helena Blavatsky/Henry Steel Olcott/Rudolf Steiner)
