The word "晶莹" is formed by combining the character 晶, meaning "crystal" or "sparkling", which is itself composed of three sun radicals (日) to emphasize intense brightness, with the character 莹, meaning "lustrous" or "glistening", which incorporates the jade radical (玉) to suggest precious clarity and a phonetic component (荧) hinting at light. Together, these characters semantically reinforce each other to convey the idea of something being both brilliantly clear and shining.