circumincession

or cir·cum·in·ses·sion

[ sur-kuh m-in-sesh-uh n ]
/ ˌsɜr kəm ɪnˈsɛʃ ən /

noun Theology.

the reciprocal existence in one another of the three persons of the Trinity.

Origin of circumincession

1635–45; < Medieval Latin circumincessiōn- (stem of circumcessiō), equivalent to Latin circum- circum- + Medieval Latin incessiōn- < Latin incess(us) (past participle of incedere to give in, to go along with, equivalent to in- in-2 + cēd(ere) to go + -tus past participle suffix) + -iōn- -ion; see cede, cession