Antelucan
Pronunciation : An`te*lu"can
Part of Speech : a.
Etymology : [L. antelucanus; ante + lux light.]
Definition : Defn: Held or being before light; -- a word applied to assemblies of Christians, in ancient times of persecution, held before light in the morning. "Antelucan worship." De Quincey.
Source : Webster's Unabridged Dictionary, 1913