Draught

Draught is a word that means a current of air or beer that is served directly from a keg or a cask. The word draught is often spelled as "draft" in the United States and Canada, while it is spelled as "draught" in the United Kingdom and most other English speaking countries.
The name draught beer derives from the Old English word dragan, which meant "pull". From this word, other words such as draw, drag and draught were derived. The word draught was in usage to refer to the serving of beer by the time the beer engine was invented in the late 18th century. Because the beer was served from the barrell to the customer through hand pumps the word eventually came to refer to beer that was only served this way.
The correct pronunciation of draught in English is the same as draft.

General Lexicon

English