coessentiality noun2 •Participation in the same essence.[…] Coessentiality, Sameness of Nature, and Sameness of Essence, […] do all of them, in the sense of the Fathers, denote but one and the same Thing, viz. A Numerical Unity of the Divine Nature, […] — 1693 •The condition or quality of being coessential (“mutually essential for something else”). formscoessentialities
