Why this word is great
SUNBOW — [Noun] A luminous arc of prismatic colors formed when sunlight refracts through airborne water spray—not rain—from a waterfall, fountain, or crashing wave. From sun ("the star at the center of the solar system") + bow ("a curved shape"), by analogy with rainbow. Unlike "rainbow" (which demands the theatrics of a passing storm) or "moonbow" (which flickers like a ghost in lunar pallor), a sunbow is the quiet miracle of light catching the exhale of water in still air. It is the trembling halo above a garden sprinkler at dawn, the spectral veil clinging to the base of a cataract, the sudden brilliance where ocean meets cliff—proof that even the most ordinary collisions can fracture the world into color.