If you invented something that used light, what root word would likely be in your invention's name? Astro Lum Phon Vis

The answer would be luc, lum, lun & lus. Since they all came from Latin lux, lucis & lume which means all light. Luminary, to bring light to the eye or luminescence which means a giving out of light by a material not coming from heat. Lucent means to produce light. So any word that has those Latin roots can be an invention's name.