consubstantial

Consubstantial (Latin: consubstantialis) is an adjective used in Latin Christian christology, coined by Tertullian in Against Hermogenes 44, used to translate the Greek term homoousios. "Consubstantial" describes the relationship among the Divine persons of the Christian Trinity and connotes that God the Father, God the Son, and God the Holy Ghost are "of one substance" in that the Son is "begotten" "before all ages" or "eternally" of the Father's own being, from which the Spirit also eternally "proceeds." In Latin languages it is the term for homoousism.