Consubstantiality, a term derived from Latin: consubstantialitas, denotes identity of substance or essence in spite of difference in aspect.
[1] It appears most commonly in its adjectival form, "consubstantial",[2] from Latin consubstantialis,[3] and its best-known use is in regard to an account, in Christian theology, of the relation between Jesus Christ and God the Father.
There was no equivalent grammatical formation in Latin, and it was translated as essentia or substantia and then indirectly into English as "essence" or "substance".
In order to designate οὐσία, early Christian theologian Tertullian favored the use of substantia over essentia, while Augustine of Hippo and Boethius took the opposite stance, preferring the use of essentia as designation for οὐσία.
[12] In the 1662 Book of Common Prayer of the Church of England, the adjective "consubstantial" in the Nicene Creed is rendered by the phrase "being of one substance".
[16][17][18] The Catholic Church, in its official translation of the Nicene Creed, keeps the term "consubstantial".