Definition of illuminated

The word "illuminated" comes from the Latin word "illuminatus," meaning "lit up" or "enlightened." It combines the prefix "il-", meaning "in," with "luminatus," the past participle of "luminare," meaning "to shine." The word first appeared in English in the 14th century, referring to something that was physically lit up. Later, it took on a metaphorical meaning, signifying a mental or spiritual enlightenment, often used to describe religious or philosophical experiences.