lampad

Their faces had the warm glow of lampads in an ancient church[....]

--We, by Yevgeny Zamyatin, translated by Bernard Guilbert Guerney in 1960; p. 52 of the 1977 Penguin edition

A "lampad" is a lamp, but according to MW3, the term is specifically "used of the seven lamps of fire in Rev. 4:5." I'm not sure whether that means it's only used in that context, or whether that's just an example.