Photeinos describes something filled with or radiating light, built on phos ('light'). In the New Testament it carries both a literal and a moral-spiritual dimension. The bright cloud at the Transfiguration (Matt 17:5) is photeinos in its most concrete physical sense, while Jesus' teaching about the eye as the lamp of the body (Matt 6:22; Luke 11:34, 36) uses the word to describe the inner condition of a person whose spiritual vision is clear and uncorrupted. The Spanish 'luminoso' and French 'lumineux' neatly parallel this dual register of radiant light and metaphorical clarity.