Whiskey is the American spelling of the term whisky. Some writers reserve "whiskey" for the spirits distilled in the United States and Ireland and "whisky" for those distilled in Great Britain and Canada--but there are many exceptions. The Welsh version is "wysgi".
...
Few books have had so extensive
a circulation. The number of counted editions
exceeds 2,000; and 1,000 different editions
are preserved in the British Museum. ...