1) Avoirdupois unit 2) British weight 3) Centner 4) Hundredweight 5) Quintal 6) Short hundredweight 1) Cwt 
• (n.) Relating to a hundred. • (n.) A weight of one hundred pounds avoirdupois; -- called in many parts of the United States a Hundredweight.
Cen'tal noun [ Latin centum a hundred.] A weight of one hundred pounds avoirdupois; -- called in many parts of the United States a Hundredweight . 
The cental was a weight of 100 pounds legal in Britain since 1879 and used primarily for corn. The term was invented by Danson, a barrister, in order to meet the need for a uniform measure in the Liverpool corn trade. It was first introduced in February 1859, and legalised twenty years later.
cental 1. A unit of weight in the U.S. Customary System equal to 100 pounds (45.36 kilograms); also called 'short hundredweight'. 2. A unit of weight in the British Imperial System equal to 112 pounds (50.80 kilograms).
hundredweight (def. 1). · a hundredweight of 112 lb. (50.8 kg).