luc/lum

light

Spelled luc, lum · lucere 'to shine'

Latin lucere meant to shine: lucid thought seems bright, translucent glass lets light through, and luminous stars glow.

Words built from it

lucid — clear and easy to understand
luc (light) + -id
translucent — allowing light to pass through partially
trans- (through) + luc (light) + -ent
illuminate — to light up
il- (in; form of in-) + lum (light) + -ate
luminous — giving off light
lum (light) + -inous (full of)
elucidate — to make clear, to shed light on
e- (out; form of ex-) + luc (light) + -ate
luminary — a person who inspires others, or a source of light
lum (light) + -inary (one connected with)
pellucid — extremely clear, easy to see through or understand
per- (thoroughly) + luc (light) + -id