coessential

co·es·sen·tial

C0456000 (kō′ĭ-sĕn′shəl)adj. Having the same essence or nature.
co′es·sen′ti·al′i·ty (-shē-ăl′ĭ-tē) n.co′es·sen′tial·ly adv.

coessential

(ˌkəʊɪˈsɛnʃəl) adj (Ecclesiastical Terms) Christianity being one in essence or nature: a term applied to the three persons of the Trinity coessentiality, ˌcoesˈsentialness n ˌcoesˈsentially adv

co•es•sen•tial

(ˌkoʊ ɪˈsɛn ʃəl)

adj. of the same essence or nature. [1425–75] co`es•sen′tial•ly, adv.