Scots 
(skŏts)
(skŏts)adj.
Scottish. See Usage Note at Scottish.
n.
The language traditionally spoken by people living in the Lowlands of Scotland. Scots is sometimes classified as a variety of English and sometimes as a separate language.
[Middle English scottis, variant of scottisc, Scottish, from Scotte, sing. of Scottes, Scotsmen; see SCOT.]