iconostasis
A wall of icons between the sanctuary and the nave in an Eastern Orthodox church.
The golden glitter on the crimson background of the iconostasis, the gilt ornaments of the icons, the silver of the chandeliers and candlesticks, the flagstones of the floor, the mats, the banners above the choir, the steps of the ambo, the ancient books black with age, the cassocks and surplices, were all inundated with light.
Where it comes from
Borrowed from Byzantine Greek εἰκονόστασις (eikonóstasis), from εἰκών (eikṓn, “icon”) + στάσις (stásis, “fixture”).
Adapted from the Wiktionary entry iconostasis (CC BY-SA 4.0).