The Collaborative International Dictionary
Coessential
Coessential \Co`es*sen"tial\, a. Partaking of the same essence. -- Co`es*sen"tial*ly, adv.
We bless and magnify that coessential Spirit, eternally
proceeding from both [The Father and the Son].
--Hooker.
Wiktionary
coessential
a. Holding the same essence or nature.
Usage examples of "coessential".
The technology was known simply as RICH, or Reality Inference Coessential Hologram.