Origin of homoiousianEcclesiastical Late Greek homoiousios, of like substance ; from homoios, like (; from homos, same) + ousia, essence ; from ?n, being: see onto-
Origin of HomoiousianFrom Greek homoiousios, of similar substance : homoio-, homeo- + ousia, substance (from ousa, feminine present participle of einai, to be; see es- in Indo-European roots).
(comparative more homoiousian, superlative most homoiousian)
- (historical) One of the Semi-Arians of the 4th century who held that the Son was of like, but not the same, essence or substance with the Father.
From Ancient Greek ὁμοιουσιος (homoiousios), from ὁμοιος (homoios, “like, similar”) + ουσια (ousia, “essence”).