An Etymological Dictionary of Astronomy and Astrophysics

A black, hard mineral consisting of carbon and various carbon compounds. Coal is formed from the decomposition of ancient plants buried deep in the Earth’s crust
for millions of years. It is currently the most widely used substance to generate electricity and heat. Its combustion products are used as raw material for a variety of products including cement, asphalt, and plastics. Due to the harmful gases that it releases, the use of coal is constantly being reduced as alternative fuels are found.

Etymology (EN): M.E. cole, from O.E. col “charcoal, live coal;” (cf. O.Fr. kole, M.Du. cole, Du. kool, O.H.G. chol, Ger. Kohle, from PIE root *g(e)u-lo- “live coal” (cf. Irish gual “coal”).

Etymology (PE): From zoqâl, → charcoal, + sang, → stone.