O

Oikonomia (οἰκονομία)

Economy or dispensation; God's providential ordering of creation and salvation through the hierarchical structures.

Primary text: Celestial Hierarchy IV

Onoma (ὄνομα)

Name; the divine appellations through which God is known in His activities while remaining transcendent in essence.

Primary text: Divine Names I

Ousia (οὐσία)

Essence or being; the transcendent divine nature that remains beyond all hierarchical manifestations and human knowledge.

Primary text: Divine Names II