It's a rather demeaning term and means "meat devourer" or "meat muncher" (loosely translated).
> But now there's a new theory. According to the Alaska Native Language Center at the University of Alaska Fairbanks, linguists believe the word Eskimo actually came from the French word esquimaux, meaning one who nets snowshoes. [. . .] But the correction to the etymological record came too late to rehabilitate the word Eskimo. [. . .] Many Native Alaskans still refer to themselves as Eskimos, in part because the word Inuit isn't part of the Yupik languages of Alaska and Siberia.
So it’s considered non-PC because for a while an incorrect etymology of “meat muncher” was used
https://www.tsn.ca/edmonton-cfl-franchise-to-drop-eskimos-na...