Christian Theol. having the same substance: said esp. of the persons of the Trinity
Origin of consubstantialMiddle English consubstancial from Ecclesiastical Late Latin consubstantialis: see com- and substantial
Of the same substance, nature, or essence.
Origin of consubstantialMiddle English consubstancial from Late Latin cōnsubstantiālis Latin com- com- Late Latin substantiālis substantial ; see substantial .
(comparative more consubstantial, superlative most consubstantial)
From Latin consubstāntiālis, from con- + substāntia (“substance”).