Examples from the Web for erse
Then Rab said he tried him wi' Erse, for he cam in his youth frae the braes of Glenlivat—but it wadna do.The Antiquary, Complete|Sir Walter Scott
And by that time he spoke the old tongue of his youth, and the Erse way of speaking was forgotten.
The Erse and the Gaelic tongues, you know, are very similar in construction, also the modern Welsh.The Life and Letters of Lafcadio Hearn, Volume 1|Elizabeth Bisland
It may be doubted if there would have been much loyalty taught to any government by the use of the Erse tongue.
Words in the Erse came also from the dim figure who cast it, whereat Phelim and I laughed.