Erse adjective 1noun 1 adjective1 •(offensive, old-fashioned) Connected with Ireland or the Highlands of Scotland, or to the Gaelic languages spoken in those places. noun1 •(offensive, old-fashioned) Either of the Gaelic languages of Ireland and Scotland.Now he's just sung in his mother tongue, the ancient Irish Erse, and cleared the pub completely by the forty-second verse! — 1993
