Hypostaʹtic Union

The union of two or more persons into one undivided unity, as, for example, the three persons of the eternal Godhead. The Greek hyposʹtasis corresponds to the Latin persoʹna. The three persons of the God and three hyposʹtases of the Godhead mean one and the same thing.

“We do not find, indeed, that the hypostatic pre-existence of Christ was an article of their creed [i.e. of the Nazarenes].”—Fisher: Supernatural Origin of Christianity, essay v. p. 319.