Being a real  tavern of Irish and Scottish origin, O'Donnell's Pub takes pride in an uncannily good selection of  "the crathur" and  features Single Malt Scotch Whisky tasting Thursdays 8pm. 

Is Whisky not Whiskey? As you know, the Gaelic term is "Uisce Bheatha", pronounced  "ish-kay va-ha", meaning "Lively Water" or "Water of Life". Around the 17th century (scholars please excuse, this is just an outline)  regions of Irish differed enough to become dialects. Areas of English speakers interposed, aggravating the divisions and Scots Gaelic became more distinct. Taxation appeared, also those thirsty English speakers drove demand for labels. So the transliteration was likely invented more than once from the get go. A word to the wise, "Scots" are the people and "Scotch" is the drink. 

Irish Whiskey
Bushmills Irish Whiskey. The worlds oldest distillery
Bushmills Malt 10 year old. An Irish single malt
Black Bush
Tullamore Dew The Legendary Irish whiskey
Tullamore Dew 12 Years Old - A Blend
John Power and Son Irish Whiskey
Jameson Gold
Jameson 12 year old
From the family of Marconi.
Yes, the inventor of electronic broadcasting
had real Irish roots.
Jameson 1780 Irish whiskey

Peculiarly, in the USA "Scotch" and "Irish"  are often used to mean "single malt" or "blended", with Scotch now the more popular. Of course,  both styles are made in both countries. "Blended" is the product of centuries of  pursuit of  perfection and reliability created by the larger distilleries and "single" comes from  remote, isolated areas with unique barley varieties. These distinctly flavoured small runs are blended with grain whiskey to create a more acceptable, uniform taste which is less vulnerable to a poor harvest than any isolated strain of barley. 

The US fashion for  Scotch, it is said, dates only from World War 2; formerly Irish was dominant. The change occurred while vast numbers of US drinkers were stationed in Britain during the War with none in the Irish Republic, a neutral state. 

Single Malt Scotch Whisky
Dalwhinnie 15 year old
Glen Kinchle 10 year old
Cragganmore 12 year old
Oban 14 year old
Glenlivet 12 year old
Lagavulin 16 year old
Talisker 10 year old
Knockando 12 year old
The Mac Allan 12 year old
The Mac Allan 18 year old

12 year old