Jacob uses "Nephite" and "Lamanite" as political designators.
Jacob 1:13-14, The Book of Mormon, The Church of Jesus Christ of Latter-Day Saints, accessed September 29, 2022
13 Now the people which were not Lamanites were Nephites; nevertheless, they were called Nephites, Jacobites, Josephites, Zoramites, Lamanites, Lemuelites, and Ishmaelites.
14 But I, Jacob, shall not hereafter distinguish them by these names, but I shall call them Lamanites that seek to destroy the people of Nephi, and those who are friendly to Nephi I shall call Nephites, or the people of Nephi, according to the reigns of the kings.