noun /hʌɪˈpɒstəsɪs/
a) The essential person, specifically the single person of Christ (as distinguished from his two ‘natures’, human and divine), or of the three ‘persons’ of the Trinity (comprising a single ‘essence’).
Physician: I have viewed your urine, and the hypostasis, / Thick and obscure, doth make the danger great.
What did the God who hammered the universe together have to do with virtue, redemption, the strange doctrine of hypostasis?
Wikipedia foundation.