erastianism Erastian • Erastianism · · · Info · Definitions · Characters · · erastianism · · Text Latin · · Script 11 · · Length 6 · · Syllables Definitions · · · (noun) the doctrine that the state is supreme over the church in ecclesiastical matters. Synonyms: Erastianism, Byzantinism, Caesaropapism. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074