hypostasis
/hɪpəˈstæsɪs/Definitions
1. noun
A fundamental or underlying substance, entity, or concept, especially in philosophy, particularly in the context of theology and Christian doctrine.
“The concept of hypostasis was crucial in resolving the Christological controversies of the early Christian Church.”
2. noun
A condition or state of being, especially one that is fundamental or underlying.
“The hypostasis of the disease was difficult to diagnose and treat.”