What is the greek meaning of glorious?

There isn't one single Greek word that perfectly translates to "glorious" in all its nuances. The best translation depends on the specific aspect of "glorious" you want to emphasize:

* For "bright," "shining," or "radiant": Words like λαμπρός (lamprós) or ένδοξος (éndoxos) would be suitable. `Lampós` emphasizes brightness and splendor, while `éndoxos` suggests glory achieved through fame or renown.

* For "magnificent," "splendid," or "exalted": μεγαλοπρεπής (megaloprepḗs) captures the sense of grandeur and magnificence.

* For "triumphant" or "victorious": νικηφόρος (nikēphoros) is a good choice.

Therefore, a direct translation doesn't exist. You need to choose the Greek word that best fits the context and the specific shade of meaning you intend to convey.