cero-, cer-, kero-, keri-

(Greek: wax, waxy)

kerogen (s) (noun), kerogens (pl)
A complex fossilized organic material that exists in sedimentary rock and which is insoluble in organic solvents: "Kerogen yields petroleum products; such as, oil and natural gas, when it is distilled."
kerosene
1. A thin oil distilled from petroleum or shale oil, used as a fuel for heating and cooking, in lamps, and as a denaturant for alcohol.

Also called coal oil, lamp oil. 2. Etymology: from 1852, coined in Canada by Abraham Gesner, who discovered how to distill it about 1846, from Greek keros, "wax" + chemical suffix -ene. So called because it contains paraffin.

kerosine
A misspelling of kerosene.
kerotherapy
The treatment of burns and denuded surfaces with wax or paraffin preparations.
Tricerion
A candlestick with three lights, symbolizing the Trinity and used by Greek bishops blessing people.