What is the origin of the term "halo" and how has its meaning evolved over time?

The term "halo" originates from the Greek Word "halos," meaning "disk" or "ring of light." In religious art, a halo symbolizes holiness or divinity, often depicted as a glowing circle above the head of a saint or angel. Over time, the meaning of "halo" has expanded to represent a sense of purity, enlightenment, or protection in a broader context beyond religious imagery.