triˈpersonallyadv. in a tripersonal manner, in three persons.
ΘΚΠ
the world > the supernatural > deity > Christian God > the Trinity > [adverb] > consisting of three persons
tripersonally1901
1901 R. C. MoberlyAtonem. & Personality 154 The Three Persons are neither Three Gods, nor Three parts of God. Rather they are God Threefoldly, God Tri-personally.