I. ˈskäch adjective
Etymology: contraction of Scottish
Date: 1591
1. : Scottish
2. : inclined to frugality
II. noun
Date: circa 1700
1. : Scots
2. plural in construction : the people of Scotland
3. often not capitalized : whiskey distilled in Scotland especially from malted barley — called also Scotch whisky
III. trademark
— used for adhesive tape