What is the old meaning of mantle?

Excuse me, could you elaborate on the ancient significance of the word 'mantle'? I'm quite fascinated by the etymology of words and how they evolve over time. In the context you've mentioned, does 'mantle' refer to a specific garment worn by ancient civilizations, perhaps a robe or cloak of some sort? Or did it have a deeper, more symbolic meaning? I'm curious to know if it was associated with any particular culture or era, and how its meaning might have shifted over the centuries. Your insights would be greatly appreciated.