noun
also cir·cum·in·ses·sion ˌ ̷ ̷ ̷ ̷+inˈseshən
( -s )
Etymology: Medieval Latin circumincession-, circumincessio (from Latin circum- + Medieval Latin incessio, from Latin incessus, past participle of incedere to go along, from in- + cedere to go), translation of Middle Greek perichōrēsis, from Greek perichōrein to go around, rotate, from peri- + chōrein to go, withdraw (akin to chēros left, bereaved) — more at in- , cede , heir
: the theological doctrine of the reciprocal existence in each other of the three persons of the Trinity