Meaning

noun stick of wax with a wick in the middle

noun the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,0

verb examine eggs for freshness by holding them against a light

originFrom Middle English candel, from Old English candel (“candle”), borrowed from Latin candēla (“candle”), from Latin candeō (“be white, bright, shining”, verb); see candid. Doublet of candela and chandelle.

Etymology from Wiktionary, CC BY-SA 3.0