lux
lux, lucis f.
noun, 3rd declension
lux · /luks/
light, daylight
Lux is light itself; lumen is the light a thing gives off (compare lumen de lúmine in the Credo).
in English lucid, translucent
in the texts
Psalmus Iúdica me lucem
Meménto étiam (pro defúnctis) lucis
external dictionary: Logeion