Sassenach. Highlands word for an English person; literally means Saxon.
Do understand: English person or a Lowland Scot.
How far do we need to go back?
The Romans arrived in the Scottish Lowlands in A.D. 80 but left few traces of their stay. During the period known as the Dark Ages, four groups emerged in Scotland: the Picts in the north; the Scots (of Irish origin) in the west; the Britons, who were related to the Welsh, in the southwest; and the Angles in the southeast.