Why this word is great
CLAVILUX — [Noun] A mechanical device invented by Thomas Wilfred for projecting lumia, an art form consisting of dynamic light patterns. Coined by Thomas Wilfred from Latin clavis ("key") and lux ("light"), literally meaning "light played by key". Unlike "color organ" (which subordinates light to music) or "kinetic art" (which prioritizes motion over illumination), the clavilux is a silent conductor of pure lumia—light as its own medium. It is the slow unfurling of chromatic tides across a darkened wall, the precise choreography of intersecting beams in an empty room, or the ghostly afterimage of a shape that never quite resolves into form. A clavilux does not accompany; it haunts.